Three students opened saving account. mariama has saved $25.40. shai saved 3/4 of the amount that mariama saved. nyah saved twice as much as shai. how much is the total saved of all three? ? plzz i will give you 100 points

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

answer: i believe the answer is e

step-by-step explanation:

i think the answer is 90 hope this