Round each number to the nearest 10.
33 rounds to 30 and 89 rounds to 90, thus in your head it's easier to mentally add 30 + 90 for purposes of estimation.
Answer:
Step-by-step explanation:
Square units = √( 4^2 + 1^2) * √( 8^2 + 2^2)
= √17 * √68
= √1156
= 34
Answer:

Graeme will make $33.84 after four hours of work.
Answer:
The answer is n = 17
Step-by-step explanation:
Divide both sides by the numeric factor on the left side, then solve.
Hoped this helped!
brainly, please?