The ratio of two numbers is 7 to 5.the sum of the numbers is 36.what are the numbers? 18 and 18,
14 and 10
21 and 15
26 and 10

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)

286 divided by 457.6 what is the quotient?