Abag contains 1p, 2p, and 5p coins. 3/8 of the bag are 1p coins. there are as many 5p coins than 1p coins. there are 640 coins in total.

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?

Find the maximum value of p= 4x + 5y subject to the following constraints :