Write an equation of the line that passes through points (3,7) and (5,11)
a. y-7=5(x-3)
b. y-7=2(x-3)
c. y+7=5(x-3)
d. y+7=2(x+3)

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Ana earns 2.5% simple interest on $2,000 in her savings account. she does not make any deposits or withdrawals. after 3 years, how much interest will ana have earned on her savings account?