Jimmy has a discount card that reduces the price of hies grocery bill in a certain grocery store by 40%. If c represents the cost of Jimmy's groceries, write an expression that represents his grocery bill.

step-by-step explanation:

f

step-by-step explanation:

f

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it