Which expression is the factorization of x2 + 10x + 21? (x + 3) (x + 7)

(x + 4) (x+6)

O (X+6) (x + 15)

O (x + 7) (x + 14)

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Write a proof to show that opposite angles of a parallelogram are congruent. Be sure to create and name the appropriate geometric figures. This figure does not need to be submitted.

the sum of ava's and grace's ages is 35. Ava is one year less than three time Grace's age. How old is Ava, x and Grace, y express your answer as an ordered pair

The expression 12a+7s is the cost in dollars for A adults and S students to enter the local marching band competition. Find the total cost for four adults and 30 students

people dis aint a question. but imma tell ya somethin - im here to cheat on my homework xD anyone else?

Emily Anderson's deposit includes two checks; $231.09 and $987.67; cash 9 one-dollar bills, 9 five-dollar bills, 8 ten-dollar bills, 14 quarters, 25 dimes, 18 nickels, and 64 pennies. She received $40 cash from the total amount.

A carpenter is putting a skylight in a roof. If the roof measures 10x + 9 by 7x + 7 and the skylight measures x + 5 by 3x + 3, what is the area of the remaining roof after the skylight is built?

What does principle amount mean

If z varies directly as x and z=30 when x=8 find z when x=4

Which measurement statement is correct? A. There are 2 cups in a pint B. There are pints in a cup C. There are 4 quarts in a pint D. There are 4 pints in quart

What is the surface are of a storage b