Ali simplifies the expression 9y+y9y+y to 9y29y2. Use the drop-down menus to complete the statements below to explain why Ali's solution is correct or incorrect.

What is the answer for 7x + y=3

Nate spent $28 on 2 dvds. at this rate how much would 5 dvds cost him

Elija got a job as an office clerk in 2000. At the end of every year, Elija has gotten either a raise, a promotion, or both.

What is 8.072 rounded to the nearest hundredths

Solve for x. 4x-4-3x2-16=6x+4 - 112 372 - 432 112

Zen rolled a fair six-sided die 12 times. The table below shows the number of times each number was rolled: Number on the cube: 1, 2, 3, 4, 5, 6 Number of times it appeared: 0. 3.

Describe the house around 678 to the nearest hundred

Find the volume of a pyramid with a square base, where the perimeter of the base is 12.8 m and the height of the pyramid is 17 m. Round your answer to the nearest tenth of a cubic meter.

The area of a trapezium shaped field is 480m^2, the distance between two parallel Sides 15 m and one of the parallel sides is 20m. Find the other parallel side I will mark as brain lies

Chemists measure the acidity of an aqueous solution using pH. The pH is pH=-log-10[H^+] where pH is a measure of hydrogen ion concentration [H^+] measured in moles of hydrogen per liter of a solution. Find the pH of a solution if [H^+]=5.5x10^-12.