Angad was thinking of a number. angad adds 20 to it, then doubles it and gets an answer of 53. what was the original number?

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Asphere has a diameter of 10 in. what is the volume of the sphere?