Which property is illustrated by the following statement? 30POINTS! do all 3 if them

a. 7x(−2) = (−2)7x

b. 5 + 1.4 = 1.4 + 5

c. (4z)xy = 4(zx)y

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

The table below shows the angle measurements for triangle abc and triangle xyz. if triangle abc is similar to triangle xyz, what does angle z equal, in degrees?

What is value of x? enter your answer in the box. x =