What property justifies the following statement?

If 4x+6=20, then 4x=14.

Select all of the numbers that round to 4.3 when rounded to the nearest tenth. A. 4.25 B. 4.24 C. 4.21 D. 4.35 E. 4.34 F. 4.31

Markup = percent markup x cost markdown = percent markdown x original price Andie bought a tablet computer whose original price was $149. It was marked down 35%. What was the sale price of the computer?

For any three consecutive numbers, what can you say about odd numbers and even numbers? Explain

Solve this problem using estimation. Ramona is ordering carpet for a room that is 19.5 feet by 41.6 feet. The carpet is $9.50 per square foot. About how much can Ramona expect to pay for the carpet she is ordering?

A property tax rate is $7.79 per $100 of assessed value. What is the tax rate as a decimal?

Solve using substitution. 2x-3y x+y=9 just so you know, I know the answer its (3,6). I just need the explanation on how to get that answer using substitution.

A speed boat is traveling at 100 km/hr. How many hours will it take for the boat to cover a distance of 115 km?

A die contains the numbers 1 through 6. David rolls the die 2 times. What is the probability of getting a 3 on the first roll and a 5 on the second roll?

The equation y = 55x + 85 describes the amount of money a plumber charges, where y is the total amount he charges and x is the number of hours he works. The table shows the total amount of money an electrician charges.

The formula C = 2πr relates the radius r of a circle to its circumference C. Solve the formula for r.