I need Geomatry forlmulas

The difference between the ages of two friends is 2 years. the sum of their ages is 74 years. find the age of the older friend

2) Simplify - 2 (x + 4) + 5x + 10

A plumber loads his truck each morning with faucets that will be needed for the service calls and other emergency calls that come in that day.

the length if a ribbon is 3/4 meter. sun yi needs pieces measuring 1/3 meter for an art project. what is the greatest number of pieces measuring 1/3 meter that can be cut from the ribbon.

Rebecca knows there are 4 quarts in a gallon. She knows that a large drum holds 5 gallons. How many quarts will the drum hold?

Lorelei tosses a coin 4 times. What is the probability of tossing four heads? Express as a percent. Round to the nearest tenth if necessary

M=-2 b = (0,4) find the equation of the line with the given slope and intercept

Derek states that the expression 4 (a+6) is equivalent to the expression 20+4a+4. Is Derek correct? show the proof that Derek is right or wrong! Explain how you determined whether or not the two expressions were equivalent

The graph shows the function f (x) = 3^x What is the value of x when f (x) = 9? A:3 B:1 C:0 D:2

21 is what percent less than 35?