Answer: ∠OZP = 62 ∠PZQ = 63
<u>Step-by-step explanation:</u>
Use the Angle Addition Postulate
∠OZP + ∠PZQ = ∠OZQ
(4r + 2) + (5r - 12) = 125
9r - 10 = 125
9r = 135
r = 15
∠OZP = 4r + 2
= 4(15) + 2
= 60 + 2
= 62
∠PZQ = 5r - 12
= 5(15) - 12
= 75 - 12
= 63
Greta starts with $100 in her savings account
She adds $50 each week
Balance after week 1 = 100 + 50 = 150
Part A
Unit rate of change here is = 
⇒ Unit rate of change here is = 
⇒ Unit rate of change here is = 50%
Part B
Equation to calculate the amount of money Greta will have after any number of weeks = ?
Money after 'x' number of weeks = 
⇒ Money after 'x' number of weeks = 
Part C
Money Greta will have after 1 year= ?
In a year there are 52 weeks
So, putting x = 52 in the solution of Part B
⇒ Money after 52 weeks = 
⇒ Money after 52 weeks = 
⇒ Money after 52 weeks = 2,700