Not Multiple Choice. A. Solve the equation 2x-1=7 by undoing subtraction first
B. Solve the equation in part (a) by undoing multiplication first. Do you get the same answer you got in part (a)?
C. Which method from parts (a) and (b) do you prefer? Explain.

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

what i would say the best answer is a. 40.5

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation: