7. simplify the expression.
please and thank you

the answer is C

Step-by-step explanation:

step one: multiply the fractions

step two: simplify the product

step three: subtract the numbers

step four: reduce the fraction

( the alternative form is 4.88182)

First we have to simplify

3r + 2 < 5
subtract 2 from each side then divide by 3
r < 1

7r - 10 > 60
add ten to both sides. divide by 7.
r > 10

r<1 or r>10

if you have to graph, you should have a number line going from 0 to 11. You should put an open circle on 1 and an open circle on 10. Shade to the left from the open circle on 1, and then shade from the right from the open circle on 10.

Your union should look like this:
(-♾, 1)U(10,+♾)