From a shipment of 400 light-bulbs, a sample of 80 was selected at random and tested. If 32 light-bulbs in the sample were found to be defective, how many defective light-bulbs would be expected in the entire shipment?

How do you solve the equation by+2/3=c

Write an equation in function form 3x-y=7

if there's a 1/3 chance that it will rain today, what fraction represents the chance that it will not rain

The perimeter of a rectangular garden is 37.5 feet. the width is x, and the length is 15 feet. write an equation you could use to solve for x.

Theodore wants to put three flowering plants in his window box. The window box is shaped like a rectangular prism that is 30.5 in. long. 6 in. wide and 6 in. deep. The three plants need a total of 1,200in^3 of potting soil to grow well.

A fruit salad recipe calls for 3/4 pounds of apples and 2/5 pounds of dates. What is the least common denominator of the fractions

Thea used 1/2 of 10 blocks to build a house. Find 1/2 of 10 blocks

Enter a linear equation that models the situation. A drugstore sells pens for $1.30 each and notebooks for $3 each. The owner would like to sell $35 of these items each day. Use p for the number of pens and n for the number of notebooks.

there are 25 animals in the field. Some are horses, some are ducks. There are 84 legs in all. How many of animal are in the field?

What is the square root of 245?