Emery borrowed money from her brother to buy a new phone, and is paying off a fixed amount each week. after 2 weeks, she will owe $456, and after 5 weeks, she will owe $228

a. what was the original amount emery borrowed?

b. how much does she pay each week?

c. how useful are equations in point slope and slope intercept forms for answering each question?

A. The original price was $608. B. $76 each week C. Quite useful, as it keeps track of the amount of money she still needs to owe each week.

Step-by-step explanation: For part A, 5 week subtracted by 2 weeks is 3 weeks. 456-228 is 228. Then divide 228 by 3 and you get $76. Then do 2x76 to get 152 and add it to 456, and you get 608.

the image of (6, 9) under a dilation is (4, 6). the scale factor is

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500