What's the sum of two numbers is 90

Anna had been given $25 to buy snacks for the office party. She bought crisps at $1.40 for a pack and nuts at $3.30 for a pack. She spent as much as possible without exceeding the $25. How much money was left over?

Describe a situation of the equation * +10=2

Divide. Write your answer in simplest form. 2/9 divided by - 6/5

Linda and Juan went shopping. Linda spent $11 less than Juan. If we let x represent how much Juan spent, write an algebraic expression for how much Linda spent

What is the GCF of 20and 32

The number of farms in the country was 2.15 million in 2000. By 2006, the number had dropped to 2.07 million. What was the percent of decrease? Round to the nearest tenth of a percent

The sales totals at Macy's food store have increased exponentially over the months. Which of these best shows the sales in the first three months?

There are 613 students split into different 24 different classes about how many students are in each class

Maria's family hosts a barbeque every month in the summer. In May, they bought 3.2 pounds of hamburger and 3 packages of hot dogs. In June, they bought 1 1/2 times as much hamburger and 1/3 as many hot dogs. Hamburger costs $4.

A bag Contains rubber bands with lengths that are normally distributed with a mean of 6 cm of length, and a standard deviation of 1.5 cm. What is the probability that a randomly selected nail is between 4.5 and 7.5 cm long?