It takes a boy 20 minutes to mow the lawn, but his sister can mow it in 60 minutes. How long would it take them to mow the lawn if they worked together, using two lawn mowers?

Jack rented a bike from Alberto's Bikes. It cost $13 plus $3 per hour. If Jack paid $22, then he rented the bike for how many hours?

Given B = {a, l, g, e, b, r} and C = {m, y, t, h}, find B ∪ C

The Gulf of Mexico has an average depth of 4,874 ft. This is about 36.2% of the average depth of the Pacific Ocean. What is the average depth of the Pacific Ocean? Round to the nearest foot.

How many 4s are in 36?

What is the y-intercept of the equation 2x+3y=6?

How many headbands can the students make if one headband takes 7 beads, 9 inches of ribbon, and 3 buttons ... and the total amount of material you have is 6,437 beads, 3,636 buttons, and 3,870 inches of ribbon?

An object has a mass of 18 grams and its volume is 2 cm3 calculate density

In the diagram, a building casts a 20-ft shadow and a flagpole casts a 7-ft shadow. If the flagpole is 12 ft tall, how high is the building? Round to the nearest tenth ...

Akar akar persaman 3x^2+x-4=0 adalah

What product is less than 19*12