Which is the best first step in solving the following system of equations y=7x+3 y=9x

An alligator can run at a speed of 13 ft./s on land at this rate how far can it run in three seconds?

What does 5/4x = 1/2

Design a rectangular milk carton box of width $$w, length $$l, and height $$h, which holds $$128 cubic cm of milk. The sides of the box cost $$1 cent per square cm and the top and bottom cost $$2 cents per square cm.

Factor completely. 4x^2+16x+15

What is the solution to the system of equations x = y + 4 2x - 3y = - 2

Write the equation of the line in slope-intercept form. perpendicular to y = 2x+6 and passing through (-4,2)

Lynne used 8/3 cup of flour and 3/1 cup of sugar in a recipe what number is a common denominator for 3/1 and 8/3

Write a function for "The output is seven more than the input"

After attending a church cookout, a number of the attendees are admitted to the emergency room with nausea, vomiting, and diarrhea.

Antonio needs 8 feet of ribbon to complete a project. He can purchase a 180-inch (15-foot) packaged length for $3.99, or he can buy the ribbon by the foot for $0.39/ft. Which is the better deal for Antonio?