Question

In each of the following expressions, c represents the original cost of an item

i . 0.90c
i . 0.10c
i . c- 0.10c

Circle the expressions that represent 10% of the original cost. If more than one answer is correct, explain why expressions you use are equivalent.

Answer 1

i . 0.10c

Explanation:

Just plug a random number, idk what number you'd choose. But my lucky number is 10 so 0.10 x 10 = 1 which is 10% of the original cost XD

yea..hope this helps! :D