Answer:
72
Step-by-step explanation:
mean=average. to get average, you add up the numbers and divide by how many numbers. they add upp to 288 and since theres 4 test grades, divide by 4 to get 72.
Answer:product of powers, power of power, negative exponent
x=−5/2or
Decimal Form:
x=−2.5
Explanation
14
5x + x+96 = 180
6x+96 = 180
6x=84
x= 14
