Answer:
-243
Step-by-step explanation:
(-3) (-3) (-3) (-3) (-3) = - 243

They're taxes based on your payroll/income
David would have to save for 7 weeks in order to have enough money for his bike.
Answer:
e - 5 = 18
Hope this answered your question.
This equation simplified would be 2x^2.
Since we have terms that are not like (one has a variable and the other doesn't), we simply put them together when being multiplied.
x^2 * 2 = 2x^2