The surface area is 253.5 but Im not sure
Answer:
A: y = 9.5x + 22.5
Step-by-step explanation:
Answer:
-7, -2, 0, 5, 9, 12
Step-by-step explanation:
Negative numbers are obviously less that the positive, and well from there its fairly obvious
7(3a + 12) = 168 ← ( divide both sides by 7 )
3a + 12 = 24 ← ( subtract 12 from both sides )
3a = 12 ← ( divide both sides by 3 )
a = 4
OR
distribute the parenthesis by 7
21a + 84 = 168 ← ( subtract 84 from both sides )
21a = 84 ← ( divide both sides by 21 )
a = 4
