Please help me and example pleaseee due TODAY!

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

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

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)