Which of these are expressions?

1, 7

2, 0 + 0

3, 2 + 5

4, 8 · 9 - 5 = 72 - 5

5, a⁄9

P. S There is more than one answer.

Before sunrise, the temperature was 22.4°F below zero. By noon, it had risen 12.8°F. What expression can be used to find the temperature at noon? 0 O -22.4 - 12.8 -22.4 + 12.8 22.4 - 12.8 22.4 + 12.8

You jog 6 2/3 miles around a track each day. If you jogged that distance 4 times last week, how many miles did you jog?

How to you figure out tax rate? for example, 52.25 what an 8% sales tax

In ΔQRS, the measure of ∠S=90°, the measure of ∠Q=17°, and RS = 84 feet. Find the length of QR to the nearest tenth of a foot.

A rose bush started out at 6 inches it grew to l5 inches after a month what is the percent of change

One cubic feet of sand wounds 100 lbs. A square sandbox with 5 foot sides had half of a foot of sand in it. How many lbs of sand is in the sandbox?

in 3 days Donald earned $42 running errands. he earned the same amount each day. how much did donald earn running errens each day

Which of the following shows the prime factorization of 50? A. 5 x 10 B. 2 x 25 C. 2 x 2 x 5 D. 2 x 5 x 5

Priya spent 1/2 of the day hiking. She was lost 5/6 of the time that she was hiking. What fraction of the day was Priya lost

What is the place value of the first number in 552,945 ... and how would the number be writing