Change the following to percentages: a) 83 out of 100
b) 24 out of 50
c) 9 out of 25
d) 7 out of 20
e) 6 out of 10
f)72 out of 200
g)12 out of 40
h)36 out of 60

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?

Usan threw a softball 42 yards on her first try and 5112 yards on her second try. how much farther did she throw the softball on her second try than her first? express your answer in feet and inches. 9 ft 12 in. 28 ft 12 in. 28 ft 6 in.