A. 3a b. a^3 c. 4x d. 3pq e. 7^ef f. zxy^1
Answer:

Step-by-step explanation:
Before adding we require the fractions to have a common denominator
The lowest common denominator of 2, 5 and 3 is 30, thus
+
+ 
=
+
+ 
Add the numerators leaving the denominator
=
= 
Answer:
50
Step-by-step explanation:
30% * n = 15
Change to decimal form
.30 *n = 15
Divide each side by .30
.30n/.30 = 15/.30
n =50
The number is 50
Answer:
0.
Step-by-step explanation:
Answer:
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Step-by-step explanation:
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