George can wash the windows of his apartment in 40 minutes, and his father can wash them in 60 minutes. How long would it take them to wash the windows together?

explain!

A student got 34 pencils for school. If she sharpen 16 of the pencils before school what is her ratio of unsharpened pencils to sharpened pencils

Large cheese pizza cost 5$ large one topping is 6$ Write an equation that represents the total cost of T, of c large cheese pizzas and D large one topping pizzas

Mr gomez spends $18 on hotdogs for his family. if they are $3 each how many did he buy?

Formula for volume and surface area of a cylinder and explain why

The sum of three consecutive natural numbers is 1917, find the numbers.

Find the length of the hypotenuse of the right triangle if the width is 60 and hight is 32

Which answer shows 8.45 * 10^4 written in standard form? A) 0.000845 B) 8,450 C) 84,500 D) 8,450,000

Tickets for a concert cost $10 each if you order them online, but you must pay a service charge of $8 per order. The tickets are $12 each if you buy them at the door on the night of the concert. Write a system of equations to model the situation.

Sadie pays a $35 entry fee for her team to run a road race. She also pays $5 per race t-shirt for each of her team members. The total (entry fee and t-shirts) Sadie paid for the race was $65. Write an equation represent the situation

Suppose a family has a gross annual income of $45609