Ocusto mensal de um carro depende diretamente da kilometragem percorrida. um motorista observou um gasto de r$380,00 para dirigir 480km em maio e um custo de r$460,00 para dirigir 800km no mês de junho.

a) expressa o custo mensal c como uma função da kilometragem percorrida x, assumindo que uma relação linear descreve bem o problema.

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

What is the value of x in the following equation? -3x-2=2x+8

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60