Simplify the square root of 3 / 5 - square root of 2/7 + square root of 45 - sqaure root of 28

christopher's square sandbox has 36 ft² of playing space. it was constructed using 4 boards. One of the sandbox sports needs to be replaced. what Link Board should Christopher's father cut to repair the side of the sandbox?

3.151 rounded to the nearest hundreth

Solve polynomial to simplest exponents

So i'm having a bit of trouble with the same thing again, sorry for asking this many questions for the same lesson but my moms bf who passed and was top in his calculus classes didn't even understand it!

Greatest to least - 9 8/9, - 10 4/9

If you practice a musical instrument each day doe 2/3 of an hour, how many hours of practice will you get in each week?

Reduce each ratio to its lowest form 2:16 and 14:36

4/10:2/3 how do I do this?

Suppose the current price of gasoline is 2.63 per gallon. Find the current price index number using the 1975 price of 56.7 cents as a reference value

Tonya is 5 feet tall. Which equation below can be used to determine h, Tonya's height in centimeters if 1 inch is equivalent to 2.54 centimeters?