Answer:
a) 46.98%
b) increasing rate of change
Step-by-step explanation:
In year 1987, investment worth $29800
In year 1997, investment worth $43800
Rate of change = 1997investment - 1987investment / 1987investment × 100
Rate of change = 43800 - 29800/29800 × 100
= 14000/29800 × 100
= 0.46979 × 100
= 46.98%
Therefore, the rate of change of the investment during the time period is 46.98%.
b) The rate of change of the investment is increasing. This is as a result of the following reasons. First, the value of rate of change is positive. Second, there is no value for rate of change for period before the time period so we cannot compare rate of change.
Answer:
$159.95
Step-by-step explanation:
Let price of trumphet be defined by 
price of clarinet = $139.95
Number of clarinets sold = 19
Earning through clarinets' sale = 
Total earning of store = $4578.45
Earning through trumphets' sale = 
price of one trumohet = 
price of clarinet = $159.95
Answer:
y =8
Step-by-step explanation:
Answer:
y=4/-2
Step-by-step explanation:
I think that is the answer
Answer:
14: 9
+
5
ℎ
15: −
1
6
+
9/
9
Step-by-step explanation:
14 : ℎ
⋅
5
+
(
9
)
5ℎ+
(9)
^^ Re-order terms so constants are on the left
5ℎ+
⋅
9 also 5
ℎ+9 then after this you would wanna re arange the terms so it would be 9
+
5
ℎ
