The age and hourly pay of five employeqes at a store are shown in the table. Hourly Pay
Age
16
18
18
10
10.25
12.50
14
20
22
15
A line of best fit for the data is y = 0.9x - 4.5, where x represents age, in years, and y represents hourly pay, in dollars.
Based on the data, what is the best prediction for the hourly pay of a 25 year old?
A $17.50
D. $22.50
E. $32.78
B. $18.00
C. $19.00

d

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft