A bookstore had 45 copies of a magazine. Yesterday, it sold 23 of them. Today, it sold 15 of what remained. How many copies does the bookstore have left?

The variable Z is inversely proportional to X. When X is 6, Z has the value 2. What is the value of Z when X = 13

Find the derivative of f (x) equals - 10 divided by X at x = - 12

The top three countries in oil consumption in a certain year are as follows: the United States, China, and Japan. In millions of barrels per day, the three top countries consume 32.2 million barrels of the world's oil.

Carlos wants to buy some new video games. Each game he buys costs him 36$. Is the relationship between the number of games carlos buys and the and the total proportional?

Determine the correct scientific notation form of the number. 0.00000000165

Group of 7 people spend 33.50 movie tickets 6.50 adults and 3.50 for child ticket. Which system of equation could be used to find the number adults tickets and child tickets purchased?

A system of equations consists of two lines. One line is represented by the equation y - 6 = 2x and the other line is represented by the equation y = 2 (x+1) + 4.

How many millilitres are they in two and a quater litres

At 1:00 p. m. u have 24 megabytes of a movie. At 1:15 p. m. u have 96 megabytes. What is the downloads rate in megabytes per minute?

Mr hafizs car used 12 gallons of gas to travel 456 miles. How many miles did his car travel per gallon of gas