A poster is regularly priced at $19.98 is on sale for 40% off. What is the sale price?

What is the value of r of the geometric series?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36