25% of 40 is 10 so it would be $40+10 for the price so that should be 50. Markup=profit/cost*100
4a + 3 - 9 = -7 + 2 + a
4a - 6 = -5 + a
4a - a = -5 + 6
3a = 1 / : 3
a = 1/3
Answer:
B) 120
Step-by-step explanation:
Answer:
It's the b graph
Step-by-step explanation:
Khan Academy.