It takes Nina 2 hours to proof a chapter of Hawkes Learning Systems' Intermediate Algebra book and it takes Bethany 9 hours. How long would it take them working together?

What percent of 62 is 31

Pete's dad usually deposits $25 into his bank account every week. for the next 8 weeks, he wants to deposit more than the usual $25, and he wants the extra amount deposited to be the same each week.

The perimeter of the this rectangle is 38 inches. The length is 14 inches. What is the width of the rectangle. Remember to add, subtract, and divide by 2.

Francisco had 4.5 L of orange juice for a party. He needed a total of 6 L for all of his guests, so he made 1.5 L more juice. Did Francisco make a reasonable amount of juice for the party?

A pizza shop sells pizzas that are 10 inches (in diameter) or larger. A 10-inch cheese pizza cost $8. Each additional inch cost $1.50, and each additional topping costs $0.75. Write an equation that represents the cost of a pizza

The base of a triangle in which h=9 and a=135in^2

Cherries cost $2 /lb. Grapes cost $0.50 /lb. You can spend no more than $2 on fruit, and you need at least 2 lb in all. Create a graph showing the amount of each fruit you can buy.

Is 0.16 a whole number, integer, or rational number?

Find an ordered triple to represent a in the equation a=2g-5f in f = (1,-3,-8) and g = (3,9,-1)

In a study, the sample is chosen by writing everyones name on a playing card, shuffling the deck, then choosing the top 20 cards what is the sampling method