Mr. abernathy purchased a selection of wrenches for his shop. the total cost was $78. he bought the same number of $1.50 and $2.50 wrenches, and half that many $4 wrenches. the number of $3 wrenches was one more than the number of $4 wrenches. how many of each did he purchase?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.