Answer:
C .10
Step-by-step explanation:
Answer:
21 + 3a
Step-by-step explanation:
3 (7+a)
distribute 3 into parentheses:
21 + 3a
Answer:
3
Step-by-step explanation:

a = 3

multiply 2 and 3
2 * 3 = 6

simplify
18/6 = 3
(8 + (-3)) / 2
= (8 - 3) / 2
= 5 / 2
= 2 1/2 or 2.5
The average temp is 2.5 degrees above zero.
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