Hello.
First of all, let the number be t.
8 times t can be written like this:

Notice that the number is before the variable and the times sign (×) is not there.
We can write it as 8×t, but we usually write it as 8t.
The sum of means we add:
8t+21
Now, "less than" is "<" :

Therefore, the answer is

I hope it helps.
Have a nice day.

Answer:
To multiply fractions, all you have to do is multiply the numerators and denominators and simplify the result. To divide fractions, you simply have to flip the numerator and denominator of one of the fractions, multiply the result by the other fraction, and simplify.
Step-by-step explanation:
30, 60, 90
a. What possible jersey numbers does Frank wear.
b. its a multiple 10 and has 3 for one of its factors and its a 2-digit number,
c. By eliminating all the incorrect answers?
d. Number on, 10, 3, and frank could have 30, 60, or 90.
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