Step-by-step explanation:
Let x = Rosalyn's hourly wage and we know that she earns this much up to 40 hrs per week. Beyond 40 hrs, her hourly wage increases to 2.5× the original rate so since she worked 8hrs past 40 hrs, we can write her total salary for the week as

Solving for x, we find that

or

the greatest possible error for meters is 1/2 the increments
since 18.9 is to the tenths place
1/2 x 1/10 = 0.05
so greatest possible error for 18.9 is 0.05m
Answer:
It is f(x), y or the "output".
Step-by-step explanation:
5.5 = 1.25x
1.25x = 5.5
x = 4.4
Answer : 4.4