What number do you add to - 9 to get - 12?

What distribution pattern describes pine trees on a pine tree farm? varied random uniform clumped?

16 is 80% of what number

What does mental math look like?

A sidewalk is built 12 bricks wide by laying each brick side by side. How many inches wide is the sidewalk if each brick measures 2 5/16 inches wide?

Jason ate one third of a pizza for dinner, and his brother ate one sixth of the same pizza. What portion of the pizza was left over?

What is 3h^2 = h^2 + 18

What is the next fraction in 15/100,3/10,45/100,6/10,75/100

In January, Desmond begins saving $25 per month for a used car. Each month, he is able to save $5 more than the previous month. After how many months will Desmond first have enough money to purchase a $3,000 used car?

Can someone explain how $3.79 x 2 = $7.58 is equivalent to $7.58/2=$3.79

Three highways connect city A with city B. two highways connect city B with city C. during rush hours, each highway is blocked by a traffic accident with probability 0.2, independently of other highways.