Why is it that for ex10 part B I believe the answer is 40?

Give an example of an equation with an infinite number of solutions. Then make one change to the equation so that it has no solution

Simplify: 21 : 3 + 0.42 * 4 - 3.12

The Grand canyon national park has a new parking lot. the perimeter is 84feet the shape of the parking lot is a square what is the length of each sides

Find ratios equivalent to each given ratio. 6:7 5:3

You bought a lawn mower for $80. For every lawn you cut, you plan to charge customers $20. Which graph shows how many lawns you must cut to earn back the money spent on the lawn mower?

6 divided by 4 and 10 divided by 4

Given the sets M = {3, 4, 5, 6, 7} and N = {4, 6, 8, 10, 12}, the set M∩N is identified by which notation below? {2, 3, 4, 5, 6, 8, 10, 12} {2, 4, 4, 5, 6, 6, 7, 8, 10} ø {4, 6}

Maria needs to buy cat food. At Save Rite, cat food costs $5.25 for 3 cans. Spend Less offers cat food at $7.50 for 5 cans. Maria buys 15 cans from the store with the lowest price. How much did she pay?

The mass of the sun is approximately 1.9885*10^30 grams milligrams kilograms

Round 1,400,304.7258 to the nearest hundred thousand