The age of father is three times the age of son. If the age of son is 15 years old, then the age of father is:

50 years

55 years

45 years

40 years

Draw a number line and show how to find the difference for 36-17 using the break apart method.

At a coin collector shop, a rare US coin was recently marked up 50% and is now selling for $210 how much was the coin before the mark up?

Reuben earns about $60 per week moving lawns in the summer and cleaning windows in the winter. He invested $220 in equipment. How long will it take him to earn $860? I need the answer

The drama club is selling tickets to the spring play. Adult tickets a cost $10 and youth tickets y cost $7.50. The drama club keeps 35% of each ticket sold. Write an expression to show how much the drama club makes on the spring play.

1 km 431 + 13 km 169m

Maury completed a bicycle race 1.5 hours faster than Vince at an average speed of 16 miles per hour. Vince completed the same race at an average speed of 12 miles per hour. How many miles was the race?

X^3 - 3 x^2 + 2 x - 6 > 0

The radius of Earth is 6,378.1 km, which is 18,983.9 km less than the radius of Uranus. Find the radius of Uranus.

Solve for x. s=3w+2x

Andre wants to save $40 to buy a gift for his dad. Andre's neighbor will pay him weekly to mow the lawn, but Andre always gives a $2 donation to the food bank in weeks when he earns money.