Mrs. Yang spends $3.00 a day on cookies for her family at a local supermarket . When the price of a cookie increased by 10 cents , the number of cookies she bought decreased by 1. What was the original price , in dollars , of a cookie ?

When the price of a product was decreased by 10%, the number sold increased by 30%. What was the effect on the total revenue?

The price of two articles are in the ratio of 4 : 3 respectively. The price of first article is increased by 50% and the price of second article is decreased by 10%. If the new price of second article is ₹54, then what was the original price of first article?

Durings a special sale at furniture store. Erica bought a floor lamp at a 10$ discount. She paid total of t dollars, which included the dicounted price the floor lamp and 6% sales tax on the discounted price. In terms of t, what was the original price of the floor lamp?

The chart below shows the number of small and large packages of a certain brand of cereal that were bought over a three - day period. The proce of a small box of this brand is $ 2.99, and the price of a large box is $3.99. Which of the following matrix expression represents the income, in dollars, received from the sale of cereal each of the three days ? {:(,"Day 1","Day 2","Day 3"),("Large",75,82,57),("Small",43,36,50):}

Esteben and his family are making care packages to send to children at summer camp. Each complete car package contains 5 pens, 2 notebooks, 3 envelopes, 12 cookies, and 5 candy bars. Esteban and his family have already made 7 complete care packages and the following materials remain: 3 boxes of pens (10 pens per box) 4 boxes of notebooks (5 notebooks per box) 2 boxes of envelopes (12 envolopes per box) 84 cookies 4 1/2 boxes of candy bars (10 candy bars per box) How many additional complete care packages can Esteban and his family make with the remaining materials?

If Jane bought 3 equally priced shirts on sale, she would have 2 dollars left over. If instead she bought 10 equally priced of socks, she would have 7 dollars left over. If the prices of both shirts and socks are integers, which of the following, in dollars, could be the amount that Jane has to spends?