Astudent saves $15 per week toward the purchase of a guitar. her grandmother gives her $50 to her reach her goal. which of the following equation shows the relationship between n, the number of weeks the student has been saving and a, the total amount she has?

The total amount she has the 15 dollars times the number of weeks she has been saving, since she earns $15 per week. Then her grandma gave her $50, it is constant and doesn't change no matter how many weeks have passed. 15n represents her savings and 50 represents the money her grandma gave her.

a = 15n + 50

add an image, and i will answer

step-by-step explanation:

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.