how much water should be added to 30 gallons of a solution that is 70% antifreeze to get a mixture that is 60%

1. are the corresponding angles congruent 2. find the ratios of the corresponding sides 3. is triangle jkl congruent to triangle rst? if so what is the scale factor

Which number line correctly shows 0.8 + 0.3?

Mikes car gets an average of 28 mpg. there are 12 gallons of fuel in mikes car when he starts his trip of 140 miles. about how many gallons are left at the end of his trip?