If y=180 when x=15, what is k (constant of proportionality

Solve each of the following equations for x. 2^x - 1 = 0

A - 3b = 22 a = b - 2 What is the solution to the set of equations in the form (a, b) ? (-10, - 8) (-12, - 10) (-8, - 6) (-14, - 12)

Which is a better buy 4 grapefruits for 80 cents or 12 grapefruits for $1.80?

Consider a job that pays $100,000 per year federal income taxes 19% and state income tax is 7% what is the annual total of the required deductions of federal and state income tax

Question 1 - Heather wanted to find the density of a solution with a mass of 2.234 grams and a volume of 2.131 milliliters. She uses the density formula, density = mass/volume.

What percent of 123 is 140

What is a fraction of a pound in ounces?

Graph f (x) = 3log4 (x + 4) + 2. Find its domain, its range, and the equation of its asymptote

A hybrid car can drive 53 miles in the city on l gallon of gas. How many gallons of gas will it use to drive a total of 371 city. mil Enter the correct answer in the box. gallons

2a^2 + 6ab - 36b^2 all over 2a^2 - 8ab + 6b^2