Answer:
11
Step-by-step explanation:
5(2+4)-(2+3^3)
=5(8)-(2+27)
=40-29
=11
Answer:
2x-2y
Step-by-step explanation:
2 times x = 2x
2 times -y = -2y
Step-by-step explanation:
3x+12=45
3x=45-12
3x=33
3x/3=33/3
x=11
Divide I from both sides then subtract r from both sides, too so in the end:
R= (E-r)/I
The calculated average of a data set best describes A: Mean.