How do you explain how you know that the sum of 12.6,3.1 and 5.4 is greater than 20

A ladder is leaning up against a building. the bottom of the ladder is 6 feet from the building. the top of the ladder reaches the wall at a height of 8 feet. how long is the ladder?

Ron collected 100 pounds of aluminum cans to recycle. he plans to collect an additional 25 pounds each week. write an equation for the total pounds, P, of aluminium cans after W, weeks

What is the smallest decimal place in the number 1.04089? Select one: A. tenths B. hundredths C. thousandths D. hundred-thousandths

Karl used his credit card to buy a 90-inch HD flat-screen TV for $2,600. The credit card company charges 28% compound interest per year. If Karl made no payments for 2 years, how much would he owe the credit card company?

What is the answer to this sum 5/6 of 120

2. A chain 5 links long is joined to a chain 7 links long. How many links long is the resulting chain?

Evaluate f³+11g-4h when f=3, g=2, h=11

An=-31 + (n-1) - 11 find the eleventh term

Brian works in the lab and feels an empty cylindrical flask with 200 cubic centimeters of liquid. The flask has a radius of 3 cm and a height of 12 cm. What percent of the volume of the flask is not filled with liquid?

436% of what number is 31.61