It depends on if you mean that they need to have a whole number or not, if not then they would not need any more because they would already have 1.5 packs. If they do need a whole number then they would need 0.5 more packs
Answer:
117
Step-by-step explanation:
f(x) = 21x + 12
f(5) = 21(5) + 12
f(5) = 105 + 12
f(5) = 117
The greatest number he can spend on is $5 since he has $10 he will have $5 reamining.
Answer:
16
Step-by-step explanation:
Start with -3x + 2 = -7
Subtract 2 from each side
-3x = -9
Divide each side by -3
x = 3
