Answer:
3p = $2.10
p = $0.70
Step-by-step explanation:
Cost of a pencil: p
Cost of a pen: p × 2 = 2p
If the cost of 1 pen and 1 pencil is $2.10,
2p + 1p = $2.10
256/8 = r
256 room between 8 floors so divide the number of rooms by each floor to work out r
256 divided by 8 equals r
ok
