Solve for c.

9 = 2(c + 3) + 1

c =

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

If f(x)=3 over x+2 - square root x-3 then f(7)=

Harry owes the bank money. to repay his debt, he paid $150 back to the bank each month. after 10 months, his remaining debt was $6900. what was the original amount of harry's debt? how long did it take harry to pay back his entire debt?