Lois is four times as her son dan. the sum of their ages is 40 how old is dan

Y=1/x^2-4 i need to know how to get the answer

Can you show me how to solve this problem x-3/x+4-3x+2/2x+8

Variance is equal to the square root of standard deviation. question 3 options: a. True b. False

Multiply. (j + 7) (j - 7)

Type the formula used to convert a Celsius temperature to a Fahrenheit temperature.

What is the next number in the sequence of 12, 13, 15, 17, 111, 113, 117, 119, 123?

There are 6 gray keys for every seven blue keys write the possible ratios for gray to black keys

What formula do you use to find the volume of a triangle with a triangle base?

What is 6.825 as a mixed number in simplest form

Mark wants to paint a mural he has one and 1/3 gallons of yellow paint 1 1/4 gallon of green paint and 7/8 gallons of blue paint mart plans plans to use 3/4 gallons of each paint color how many gallons of paint will he have left after painting the