State which property the following represent. 1. (a) 50 (28 140) (50 28) 140 (c) 25 0- 25 0 25 (e) 6 x (2 7) (6 x 2) (6 x 7)

State which property the following represent. 1.(a) 50(28140)(5028)140(c)250-25025 (e) 6x(27)(6x2)(6x 7)

a) 6/25 + 7/25 + 3/25

Solve (a) 2.50 × 5 + 3.25 × 6

Differentiate the following functions with respect to x: x^(2) + y^(2) - 4x- 6y - 25= 0

I. 5x^(2) + 28x + 15 = 0 II. 6y^(2) + 35y + 25 = 0

Write the following decimals as fractions. Reduce the fractions to lowest form.(a) 0.6 (b) 2.5 (c) 1.0 (d) 3.8 (e) 13.7 (f) 21.2 (g) 6.4