Which number produces an irrational number when multiplied by 2/5

The area of the top face of a cube is 9 meters. what is the volume? {I need to know how to actually do this}

Is 70 thousand written in standard form or word for? Explain

Approximately how many 49's are there in 300?

The sum two consecutive odd integers is 164. Find the integers.

The sum of two numbers is 12 and their different is 8

In a computer game, a bird flies at a height of 1,281 feet. At the same time, a fish swims 282 feet below sea level. What is the difference between the height of the bird and the depth of the fish?

3√464 Step 1: 3 (√400 + √64) Step 2: 3 (20 + 8) Step 3: 3 (28) Step 4: 84 One of the steps shown is incorrect. Rewrite the incorrect step so that it is correct and find the correct answer. Write the answer in radical form, no decimals.

Two sides of an obtuse triangle measure 12 inches and 14 inches. The longest side measures 14 inches. What is the greatest possible whole-number length of the unknown side?

4z to the second power = 144

Lyle has 7/10 as many stamps as jeremy. If Jeremy has 140 stamps. How many more stamps does he have than lyle?