What is the perimeter of DEF to the nearest tenth? DFE is a right angle triangle. The length of DE is 18. Angle D is 38 degree and angle E is 52 degree.

A.19.4

B.20.1

C.25.3

D.43.3

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?