If A is the incenter of triangle CDE, find each measure. a) mZDCE
b) m CDE
c) mzDAE
PLEASE HELP FOR GEOMETRY

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Evaluate cos2θ for cosθ = square root of 3/2

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x