Which expression shows 27 + 36 as the product of their greatest common factor and the sum of two whole numbers with no common factor?
a) 7(3+6)7(3+6)
b) 9(4+5)9(4+5)
c) 9(3+4)9(3+4)
d) 7(4+5)7(4+5)

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.