For this case we have that the variable "x" represents the number of hours that Leticia uses to take care of children on Saturday.
IF on Friday I use 4 hours ($ 8 each) and on Saturday "x" hours ($ 8 each) obtaining a profit of $ 72, we have the following equation:

We apply distributive property:

So, on Saturday she spent 5 hours.
Answer:

7 that is what t should be
Answer:D
Step-by-step explanation:
It’s asking for it’s opposite
Answer:
Its 13
Step-by-step explanation:
Answer:
(no solutions exist)
Step-by-step explanation: