Simplify fully:

4d² - 6d² + 5d²

and

7x + 5y - 3x - 8y

Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2 + 1 inches, and its perimeter is 4 (2x2 + 1) inches. If x = 3.5, how much ribbon does she need?

Casey correctly wrote and solved a system of linear equations by substitution. In his work, he substituted an expression for one variable and solved for the other. This resulted in the equation 5 = 20. What can Casey conclude?

Find the difference between the two numbers on a number line - 7 1/5 and - 4 2/3

A bakery sells muffins using the equation C=1.85m, where C is the cost of the muffins and m is the number of muffins, what is the unit rate

Games are $25 each, and Caleb has $125 to spend. How many games can Caleb buy? A. 2 B. 3 C. 4 D. 5

A pair of vertical angles has measures (2y+5) ° and (4y) °. What is the value of y? -5/2 -2/5 2/5 5/2

Expression for 8 more than the difference of 2x and 1

American car makers produce 5650000 cars each year. in a report ben wrote that americans made 65*0000 cars. What mistake did ben make? How can he fix it?

According to the Complex Conjugate Root Theorem, if a+bi is a root of a quadratic equation, then __blank__ is also a root of the equation. Which expression correctly completes the previous sentence? a-bi a+bi -a-bi -a+bi

after the first hour of the monsoon 23 mm precipitation has fallen after the second hour a total of 61 mm of precipitation at Fallen how many millimeters of precipitation fell during the second hour