Answer:
See the explanation bellow
Step-by-step explanation:
Given data
We are told that Mary earns $7.25 an hour
The function for her salary is s = 7.25h
<em>s is a function of h because h is the time, and s a dependent variable on the time, the longer she works the more money she makes</em>
12 minus three is 9. 9 divided by 3 is 3. so X is three
Radius=3cm, so diameter=6cm

= 24.85
2d.p
Answer:
C
Step-by-step explanation:
option C.
When in the form
the slope of a line is given by the number multiplying x
A = P(1+r)^t
A = amount made after the specified time
P = original amount of money
r = rate
t = time
2500 = 1800 (1 + r)^2
2500/1800=(1800(1+r)^2)/1800
1.3888 = (1+r)^2
1.17851 = (1 +r)
1.17851 - 1 = r
Rate = .17851