Donell practiced 7 hours and Marcus practiced 4
3x + y = 2x + y
3x - 2x = y - y
x = 0
so the answer is (x,y) (0,4)
Answer:
I graphed the two points on a graph in the attachment! Hope this helps! :)
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
1 ten = 10, 20 ones = 20