What expression is the factorization of x^2+10x+21 a: (x+3)(x+7)
b: (x+4)(x+6)
c: (x+6)(x+15)
d: (x+7)(x+14)

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.