Answer:
30% of 70 = 21
Step-by-step explanation:
21/70 = .3
.3=30%
Answer:
25h+12
Step-by-step explanation:
Add the numbers :
21h-10h + <em>16</em><em>-</em><em>9</em><em> </em><em>+</em><em> </em>14h<em>+</em><em> </em><em>5</em>
21h-10h + <em>12</em><em> </em>+ 14h
Combine like terms:
25h + 12
So we need to solve:

First is important to note that both terms on the left side of the equation have a common factor because they are both divided by y. Then:

Then:

So the solution is y=6. Then option A is correct and you need to write the 6 between the symbols { }.
If 4=2^2
8=2^3
(2^)2x+10=(2^)6x
(2^)6x-(2^)2x=10
(2^)2x×7=10, where x has no real value