Answer:
question 12 is answer B
question 13 is -8x^3
Step-by-step explanation:
exponent rule 
Answer:
ok
Step-by-step explanation:
Answer:
90 cents
Step-by-step explanation:
Find how much money you have by plugging in 18 as n into the expression:
5n
5(18)
Multiply:
= 90
So, when you have 18 nickels, you have 90 cents
30% of $1.50 is 0.45 and if it's on sale you subtract from original price
so 1.50 - 0.45
and your answer would be $1.05
Answer:
3
Step-by-step explanation: