Answer:Number Sets. There are sets of numbers that are used so often they have special names and symbols: ... The numbers you can make by dividing one integer by another (but not dividing by zero). In other words ... If you square a real number you always get a positive, or zero, result. ... x + 7 = 0, x = −7, Integers, set integer.
Step-by-step explanation:
80/100 also eighty out of a hundred.
<span>To complete
the steps to demonstrate why you multiply by the reciprocal when
dividing fractions.
To find

Step 1:
Rewrite it as

.
Step
2:
Multiply the numerator and the denominator by the reciprocal of

.</span><span>
</span><span>

Step
3:
Simplify the denominator
Step
4:
Simplify the fraction
</span><span>

.
We complete the solution as follows:
</span><span><span>

</span></span>