In a march is to assign someone to a spot on the sidewalk with the job of counting the number of marchers who pass in 1 minute. then multiply this number by the minutes it takes for all marchers to pass that spot. where might this be a useful as a method for estimating crowds?

The product of two negative rational numbers is always zero sometimes zero never zero

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars

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