What expressions are equivalent to the sum of 45+63

Jake has a 95 average in math after 4 quizzes. Then he got 0 on the next quiz after being absent. There are 2 more quizzes. What average grade does he need on these last 2 quizzes to keep his average at least 85?

If a hose is filling up a swimming pool at a rate of 20 liters per minute, how long will it take to fill up a 3,600 gallon pool?

A school has 320 girls and 250 boys the probability of a girl being left handed is 0.2 the probability of a boy being left handed is 0.1 estimate the amount of left handed people there are in the school

first man ran 28 7/8 kilometers second man ran 19 1/3 kilometers how many more kilometers did first man run?

Use estimation to determine which of the following expressions is greater. Explain how you got your answer. 5 * (1.9 + 3.15) and 6.9 * (0.2 + 3.2)

Which word problem can best be represented by the fraction 5-8

The price of a car is usally £12,500 it is reduce to £11,625 what is the percentage of the reduction

An expression is shown as 3•3•3•3•3 answer for this and Part A: an equivalent form of the expression is given as, where a is constant. What is the value of a 3^a Part B:what is the simplified value of the given expression

A city is in the shape of a rectangle. in 1995 the width of the city was 5 miles and the length of the city was 7 miles. the width of the city is growing at a rate of 1 mile in 8 years.

Compare how you would model and record finding the sum and difference of two rocks weighing 2/8 pound and 3/8 pound.