Answer:
A
Step-by-step explanation:
Answer:
hrs
<u>Step-by-step explanation:</u>
1st painter:
2nd painter: 
1st + 2nd = Together
+
= 
+
= 
4x + x = 8
5x = 8
x = 
= 
This is the number of combinations of 2 from 23
23C2 = 23! / 2! 21!
A quick way to do this is 23*22 / 2 = 253
Answer:
Step-by-step explanation:
X intercept is when y = 0
3x -15(0) = 60
3x = 60
x = 20
y intercept is when x=0
3(0) -15y = 60
-15y = 60
y = -4
Answer is C