Answer:
<h2>
<em>–</em><em>5</em><em>0</em></h2>
Step-by-step explanation:
1-81-1+31
-80-1+31
-81+31
-50
Answer:
8.30256
Step-by-step explanation:
Step 1: Write out expression

Step 2: Use BPEMDAS to evaluate




= 8.30256
And we have our answer!
72 minutes
We require their hourly rate of work
Maria cleans
the house in 1 hour
Sasha cleans
of the house in 1 hour
let x be the time it takes both to clean the house
+
= 
multiply through by 6x
3x + 2x = 6
5x = 6 ⇒ x = 
Together they can clean the house in 72 minutes