Question 28 of 43 Mahua has money automatically deposited into a savings account each
week. After 5 weeks, she has $20. After 7 weeks, she has $28. The unit rate is
measured in dollars per week. What is the constant of proportionality?

A. 1 / 2
B. 4.
C. 8
D. 15

Two parallel lines are crossed by a transversal. what is value of x

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

What is r i 4.5+10r=-6.5 with work pls