Answer:
h=3
Step-by-step explanation:
divided the 21 by the 7
Answer:
500
Step-by-step explanation:
510=x+.21x-.19x
510=(1+.21-.19)X
510=1.02X
X=510/1.02
X=500
Answer:
-12
Step-by-step explanation:
z+z+z
-4+-4+-4
-8+-4
-12
Answer:
(31zy)/(13xz)
Step-by-step explanation:
A reciprocal is a number that you can multiply the original number by and get a product of 1. To find the reciprocal of a fraction, flip it upside down, putting the numerator in the denominator, and the denominator in the numerator:

If we multiply this fraction by the other, we would end up simplifying it to 1 by cross multiplication.
Answer:

Step-by-step explanation:
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