a quantity with an initial value of 5100 decays exponentially at a rate such that the quantity cuts in half every 4 seconds. what is the value of the quantity after 0.45 minutes, to the nearest hundredth

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?