Find the average value:
40 minutes + 50 minutes = 90 minutes
90 minutes/2 = 45 minutes
Together it will take them 45 minutes to clean the house
Answer:

Step-by-step explanation:
Given


Required
Determine the number of ways to get a two-course meal
This is solved as follows:
<em>The entrees can be ordered in 7 ways</em>
<em>The desserts can be ordered in 11 ways;</em>

Hence:


If you add a zero to the end of .29 it becomes .290
So, the answer is .293 > .29