Apple trees cost $ 30 each, and cherry trees cost $ 40 each. rohan has $ 600 to spend on fruit trees.
a) let x represent the number of apple trees purchased, and let y represent the number of cherry trees purchased.
b) write an equation that illustrates the different ways rohan can purchase apple trees and cherry trees and spend exactly $ 600 .
equation:

A) Apples: $30x

    Cherry: $40y

B) ($30x)+($40y)=600

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

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