Which equations are correct?

Select each correct answer.

-7x2 (4x3+2) = - 28x6-14x2

-5d3 (3d2+4) = - 15d5-20d3

-2b3 (6b2+5) = - 12b5-10b3

-3y4 (5y2+2) = - 15y8-6y4

Your job is to sort and sack marbles for sale. A bag contains 55 marbles, some red and some green. If there are 11 red marbles, what is the ratio of red to green marbles?

When x=8, what is the value of 4x-1/2x

An engineer makes a model of a bridge using scale of 1 inch = 3 yards. The length of the actual bridge is 50 yards. What is the length of the model?

Alejandro looked at his first three science test for the quarter. His scores are represented i different ways Test one:21 question right 25 total of question what is percentage test two:17 questions right whats the number of questions if he has 85%

you are cooking rice for p people each bag of rice serves 6 if you had 11 bags of rice what is the maximum amount of people you could cook for

A bag contains 5 oranges, 4 bananas, and 3 apples. If Mr. Hall reaches in the bag and chooses one piece of fruit at random, what is the probability that he will NOT choose an orange? A) 7/12 B) 1/4 C) 2/4 D) 5/12

what is 108 centimeters

What is the forecast for period 16 using the three-period weighted method? (weights are t=0.5, t-1=0.4 and t-2=0.1) a. less than or equal to 890 b. greater than 890 but less than or equal to 900 c. greater than 900 but less than or equal to 910 d.

What is the lowest common multiple of 3 and 4

Gigi spent 12% of her birthday money on a new pair of sunglasses. What fraction of her birthday money did she spend in the new sunglasses