Show an example of commutative property of addition

Solve: 2|x + 7|-4 ≥ 0 Express the answer in interval notation.

Can 36/45 be simplified

Two balloons, Balloon A and Balloon B, have a total volume of 7/9 gallons. Balloon A has a greater volume than Balloon B. The difference of their volumes is 5 / 9 gallons.

The population of bacteria in a culture grows at a rate proportional to the number of bacteria present at time t. after 3 hours it is observed that 600 bacteria are present. after 10 hours 4000 bacteria are present.

How do you use equivalent rates in the real world?

What is the measure of Angle y? A line comes out of a horizontal line to form angles 139 degrees and y degrees. 41° 49° 51° 61°

Patrick is doing a card trick using a standard 52-card deck with four suits: hearts, diamonds, spades, and clubs. He shows his friend a card, replaces it, and then shows his friend another card.

The temperature dropped 13 degrees in in 7 hours. the final temperature was - 2 degrees. what was the starting temperature?

What expression is equivalent to 18c^8 d^9/9c^3 d^6

How do I find the missing numbers in this problem - 7 * _ 8 r3