If ab is 60 degrees and ce is 20 degrees what is measurement of edc

I have a total of 300 $ in coins of denomination 1 $, 2 $,5$. The number of $2 coins is 3 times the number of $5 coins. The total number of coins is 160. How many coins of each denominations are with me?

If square root of 16 = x, then what is the value of x?

Is 14/15 bigger than 4/5

What is the volume of this prism

a marathon runner ran the first 3 miles in 17.2minutes if she continues running at this pace how long will it take her to run the entire marathon of 26.2

What is y - 5 (2 - y) = 8

A baby gains 11 pounds in its first year of life. The baby gained 4 1/4 pounds during the first four months and 3 1/2pounds in its second four months. How much did the baby gain in the last four months?

Y=3x+5 what does the y intercept tells about this equation?

Factor 10y^2 - 23y + 12

A textbook store sold a combined total of 440 physics and sociology textbooks in a week. The number of sociology textbooks sold was 54 less than the number of physics textbooks sold. How many textbooks of each type were sold?