`44%` of `2872=?^(1/2)xx36-452.25+798.74-378.66`

2/3=66"2/3% .

Solve ((835+378)^(2)+(835-378)^(2))/(835xx835+378xx378)

Express the following product in exponential form. a. (-7)^(19)xx(4)^(19) b. (-1)^(66)xx(-a)^(66)

Evaluate: ( i ) 0.5xx5.6-:0.5xx1 (ii) 25xx3.25+50.4-:24 (iii) 0.01xx0.1-0.001-:10-:0.01(iv)12.28xx1.5-36-:2.4

Arrange in descending order (1)7.4, 8.34, 74.4, 7.44, 0.74 (ii) 2.6, 2.26, 2.06, 2.007, 2.3