Incorrect

Question $3$

$\frac{0}{10}$ pts

$2$

urces

urces

between $12\%$ and $22\%$

more than $42\%$

between $22\%$ and $32\%$

between $32\%$ and $42\%$

less than $12\%$

A firm cleans chemical tank cars in the St$.$ Louis area. With standard equipment, the firm typically cleaned $70$ chemical tank cars per week. They utilized $10$ gallons of solvent, and two employees worked $5$ days per week, $8$ hours a day. The company decided to switch to a larger cleaning machine. With the larger machine, they cleaned $60$ tank cars in only $4$ days per week. They utilized $13$ gallons of solvent, and the two employees worked $6$ hours a day. The solvent costs $$4\mathrm{.}75$ per gallon and the worker is paid $$\frac{18}{h}r.$

Which of the following ranges includes the change in total productivity?

Calculate your number to the third decimal place.

between $12\%$ and $22\%$

more than $42\%$

between $22\%$ and $32\%$

between $32\%$ and $42\%$

less than $12\%$

Question $4$