How long does it take an account with a principal of $200 to earn $70 in interest at a simple annual interest rate of 7%?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

50 points~ ! i have to turn this in tomarrow