Answer:
try D
Step-by-step explanation:
C and E, evaluate the numbers outside of the parenthesis to the inside

<em>If x=-6 and y=2, evaluate 2(y-3xy)</em>
<em />
<em> </em>
First, We need to simplify the expression by multiplying the parentheses by 2:-

Now , Replace y with 2 and x with -6:-

Simplifying,

Further simplifying,

Adding,

<h3 /><h3>Good luck with your studies.</h3>
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y = Acos(Bx) + D;
D = 4, A = 2. Now T = 2π/B = 5π/8, B = 2π/(5π/8) = 16/5
WE get y = 2cos(16/5x) + 4