Sebastian opened a savings account with $800 that pays no interest. He deposits an additional $170 each week thereafter. How much money would Sebastian have in the
account 21 weeks after opening the account?

$4,370

Step-by-step explanation:

170(21)= $3,570

3,570+800= $4,370

ghjmutmum

step-by-step explanation:

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