Equivalent expression for 7a+21

What is y+1=2x-3 is in slope/intercept form?

Does the parabola with equation x2 - x + 4 = 0 have real or imaginary roots? 1. Real, because the discriminant is positive 2. Real, because the discriminant is negative 3. Imaginary, because the discriminant is positive 4.

What are the explicit equation and domain for an arithmetic sequence with a first term of 6 and a second term of 2?

You have 6,000 with which to build a rectangular enclosure with fencing

X=17 cm and y=8 what is the length of x

Ramiro did a survey of the number of pets owned by his classmates. What was the mean deviation of the number of pets?

a recipe calls for 5 8 cup butter angie wants to triple the recipe but she only has 1 1/8 cups of butter.

Kim is reading a book with 380 pages. she read 20 pages each day until she reached part 2 of the book. part 2 of the book is 160 pages long. she uses the equation 380-20d=160380-20d=160 to represent the number of days, d, it took her to read part 1.

Y = { (2, 6), (3, 1, 4), (1), (5, 6) } Is y a function and why?

A regular pyramid has a_ base and a vertex over the center of the base. A. square B. polygon C. regular polygon D. equilateral triangle