Answer:
To find average, please add all the numbers together:
4.2+...+2.25=17.25
Now, divide by 5, the number of terms:
17.25/5=3.45
Answer:
Your answer is D or $112 + 0.40($112)
Explanation:
I got it right on edge 2021
Answer:
(-5, -10)
Step-by-step explanation:
y+2x = 5y
==>2x=4y
x=2y
5y=3(2y)+5
==>
y = -5
x = -10
==>
one solution
Answer:
12P3 = 1320
Step-by-step explanation:
How you need select three persons of a group of twelve persons, but in the selection each member of the group has a different position, then you need use a permutation
Permutation is defined how

In our case n = 12 and r = 3
Thus

12P3 = 1320
Answer:
A.7
Step-by-step explanation:
80 - 12.50 = 67.50
67.50 ÷ 8.50 = 7 with a remainder
=7 mats