Question

If alex buys 4 lizards at 25% off and each lizard cost g dollars, write an expression that shows their total.

Answer 1

Total = 0.75*g*4
This is because after removing 0.25 times of g you are left with 0.75 times of g. 4 lizards were bought so multiply the discounted price by 4.
Hope this helps

Answer 2

total = 3g

Explanation:

if 25% off then he paid 100% - 25% = 75%

if original costs g dollars,

total cost = 4 ( g * 75% )

= 4 ( g * 75/100 )

= 3g

so total cost is 3g dollars