The average cost in 1990 is <span>$12,841.</span>
Answer: 7
Step-by-step explanation:
5+7+9=21
3 total numbers to start with so;
21/3=7
A , for example 3x^2 is a monomial. the monomial has one term
Answer:x + y = 54
x - y = 10
Add them to get: 2x = 64
x = 32
and plugging in x = 32 to either equation: y = 22
Ans: the numbers are 22 and 32
Step-by-step explanation:
it equals -1
you can think of it as 7-6=1 and at the end you can just add the negative sign
Hope it helps :))