When 12 is added to half the sum of a number and 8 the result is 40. what is the number?

The diagram of a cone of radius 8 cm and height 10 cm. the diameter of the base is

Lilly can fly her plane 200 miles against the wind in the same time it takes her to fly 300 miles with wind. If the wind blows at 30 miles per hour, find the speed of Lilly's plane in still air.

Felipe takes a commuter train to get to work. He pays a one-time fee to store his bike at the train station. He pays a monthly fee for train passes. The total cost c for Felipe to travel to work for m months is given by the equation 80m + 50.

Factoring the difference of two squares x^2-1

What is 4% of blank days is 56 days

5 1/2 + 2 2/3 what is the answer

How many 3/4s are in 15?

Draw a factor tree the prime factorization of 45 and 90 in the space provided below

What is 3 (x + 1) = 10+2x what is x?

Ina's Beauty Salon charges $10 per haircut. If the salon has 52 visitors seeking haircuts per day, estimate how much Tina would make in a day by rounding the number of visitors to the nearest ten. $