Answer:
4
Step-by-step explanation:
calculate the sum 4*1 any expression is multiplied by 1 remains the same solution is 4
That would be (171 + x) / 2....what u do to find the average is add up all the numbers, then divide by how many numbers there are.

Now, If the exponent was negative like you asked....
Answer:
c
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
using formula
area of triangle=1/2 × AB×AC×sinA
WHERE AB=10 andAC=15 and sinA=37○