Sarah's age is four more than twice her brothers age. Write two equivalent algebraic equations that can be used to find their ages.

Hassan is thinking of a fraction. It is bigger than 2/5 and smaller than 2/3. When he divides the numerator by the denominator, he gets an answer of 0.533. What fraction is Hassan thinking of?

Bill makes leather shoes. He charges $45 for a pair of women's shoes and $50 for a pair of men's shoes. He sells x pairs of women's shoes and y pairs of men's shoes each week and earns a total income of $2,500.

A kitten's heartbeat can be as fast as 240 beats per minute. to find the number of times a kitten's heart beats in 30 seconds, Aiden says divide 240 by 30. Do you agree with him? Why or why not?

Convert the following decimal or whole number to a percent

The perimeter of a rectangle is 62 meters. if the width were doubled and the length were increased by 21 meters, the perimeter would be 120 meters. what are the length and width of the original rectangle?

Anna has been adding $30 to her savings account every month. Which model could represent the money in Anna's savings account (y) after x months? A) B) C) D)

What is the graph of y - (-3) = - 1/2 (x - (0)) ?

The diameter of a human hair is 9*10^-5 meters. The diameter of a spiders silk is 3*10^-6 meters. How much greater is the diameter of a humans hair than a spiders silk?

Kelly is reading an 858-page book. During the past 6 days she has read 468 pages. At this rate, how many more days will it take her to complete

How to calculate the area of trapezium by only giving one base?