Steve gets 4 points for every correct answer and looses 1 point for every wrong answer. If he answered 30 questions and scored 20 points, write a system of equations. Group of answer choices

{+r+++w+=+30++4r+−+1w+=20+

{+r+++w+=+30++4r+++1w+=+20+

{+r+++w+=+20++4r+++1w+=30+

{+r+++w+=+20++4r+−+1w+=+30+

1. are the triangles similar and if so why? what is the value of x? show your work.

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.