Help please!! A student has an allowance of $20 each week. He wants to buy lunch at school for $3.50 every day, Monday - Friday. Does the student have enough money to buy lunch?

Why or why not?

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5