Answer:
x=5
Step-by-step explanation:
3x+7-x+6=23
3x-x=23-6-7
3x-x=23-13
3x-x=10
2x=10
x=5
Answer:
The mean would be 85 :)
Step-by-step explanation:
Use Pie the method we all learned i really can’t remember but i think it’s 3.14
3. 140 m^3
(3 x 6 x 7) + (1 x 2 x 7) = 126 + 14 = 140
4. 216 in^3
(4 x 4 x 9) + (3 x 4 x 6) = 144 + 72 = 216
Answer:
m^2+4m-21
Step-by-step explanation:
(m-3)(m+7)
m^2-3m+7m-21
m^2+4m-21