To find simple interest you multiply the principal (in dollars) the interest rate (as a decimal) and the time in years the equation 24.00=400. 0.015.4 shows how to find the simple interest for a certain account after 4 years .

a. what is the interest rate as a percent

b. how much is the simple interest?

c. what is the principal?

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

Which function can be used to model the monthly profit for x trinkets produced? f(x) = –4(x – 50)(x – 250) f(x) = (x – 50)(x – 250) f(x) = 28(x + 50)(x + 250) f(x) = (x + 50)(x + 250)

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.