$40/12 = unit rate simplify = 10/3
$10/3 per book
18 * 10/3 = $60 for 18 copies
Answer:
189
Equation for surface area is 2bs +b squared ( b is base and a is side)
Step-by-step explanation:
2bs+b squared
2 * 7 * 10=140
B squared = 7 squared which is 49
140 + 49=189.
Hope it helped.
Answer:
Step-by-step explanation:
Answer:
In geometry, the midpoint is the middle point of a line segment. It is equidistant from both endpoints, and it is the centroid both of the segment and of the endpoints.
Step-by-step explanation:
i don't have an explanation though
21a+17+15a=-48
Combine like terms. The only like terms are 21a and 15a
36a+17-=48
Subtract 17 from -48
36a=-65
Divide 36 from both sides
-65/36
C) is your answer
hope this helps!
