Norachai can install a new deck in 16 hours. One day his friend DeShawn helped him and it only took 6.52 hours. Find how long it would take DeShawn to do it alone. Round your answer to the nearest tenth.

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.