Find the degree of 2x7 y+4x9 -9y

Sadie computes the perimeter of a rectangle by adding the length, l, and width, w, and doubling this sum. eric computes the perimeter of a rectangle by doubling the length, l, doubling the width, w, and adding the doubled amounts. write an equation for sadie’s way of calculating the

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

Let x = a + bi and y = c + di and z = f + gi. which statements are true?