Whats 10+10 divided by 2

Sandra paints 1/2 of a small wall. Kenneth paints 1/2 of a large wall. Sandra claims that together they painted one wall because 1/2 + 1/2. Is she correct? Use mathematical reasoning to explain why or why not.

Suppose you buy a raffle ticket in each of 25 consecutive weeks in support of your favorite charity. one of the 1200 raffle tickets sold each week pays $2000. what do you expect to win for those 25 weeks, and with what standard deviation?

Matt has a full jar of marbles he gave Kayla 3/4 and Marbles and Kayla return 1/3 of the jars worth of Marvel's to the jar how much are the jars now full marbles

A $1,500 loan has an annual interest rate of 4 1/2 on the amount borrowed. how much time has elapsed if the interest is now $127.50

A certain polygon has three angles that measure 120◦ and the rest of its angles measure 150◦ . How many sides does the polygon have?

Ozarka bottled water comes in a package with 24 bottles each bottle holds 16 ounces of water how many quarts of water are in one package

What is the slope of a line passes through (-18,-16) and (18,5) ?

2 3/4 + 2 4/5 what is this math equation?

Find the value of this expression if x = 4 and y = - 2 xy / 5

What is 7lb 4 ounces converted to ounces