Which is a reasonable estimate of hourly pay for joanna and richard?

a. joanna earns $9.50 an hour; richard earns $7.50 an hour
b. joanna earns $11.00 an hour; richard earns $8.50 an hour
c. joanna earns $9.00 an hour; richard earns $11.25 an hour
d. joanna earns $10.00 an hour; richard earns $8.50 an hour

Option B is correct.

Step-by-step explanation:

If we take the day 4 earnings, the graph shows their 32 hours earnings.

We can see that Joanna earns $350 at day 4. So, her hourly wage is :

≈ $11.00 (approx)

And Richard earns approximately $270 for 32 hours. So, his hourly wage is:

≈ $8.50 (approx)

We can also check the average by taking day 3 wages.

Joanna earns approximately $260 in 24 hours. So, her hourly wage is :

≈ $11.00

Richard earns $200 approx in 24 hours. So, his hourly wage is :

≈ $8.50 or 8.00 (this is not option)

Hence, after calculating the approximate wages, we can see that Joanna earns approx $11.00 per hour and Richard earns approx $8.50

Therefore, option B. Joanna earns $11.00 an hour; Richard earns $8.50 an hour - is true.

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