Sarah borrowed $18,000 for 4 years at an annual simple interest rate of 7%. How much interest will she pay at the end of the 4 years?

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 is the equation of a line perpendicular to the line with the equation 3x+4y=8

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.