Answer:

Step-by-step explanation:
Given

Required
Find a
Take log of both sides

Apply law of logarithm

Divide both sides by a

Multiply both sides by -9

Apply law of logarithm

Cancel out log

Rewrite as:

Apply law of indices


Answer:
a. It would cost $77.50 to buy 5 tickets.
C(x)=17.5(5)-10
C(x)=87.50-10
C(x)=77.50
b. You can buy 8 tickets with $130
C(x)=17.5x-10
130=17.5x-10
Add 10 on both sides
140=17.5x
Divide 17.5 on both sides
8=x
The first one. Substitute both $82 and $42 to get the 4 and 9 hundreds.
Y = -1/8*82+57/4 = 4 hundreds
Answer:
6 £
Step-by-step explanation:
Principal loan amount x Interest rate x Time (aka Number of weeks in term) = Interest.
0.5% = 0.005
60 × 0.005 × 20 = 6
Answer:
Check pdf
Step-by-step explanation: