Two light houses flash their lights every 30 seconds and 40 seconds respectively. given that they flashed together at 10: 40 a. m, what time will they next flash together

(a) solve h+2/6 = h-3/4(b) solve the following simultaneous equations. 2x = y + 66x - 2y = 13x = ? y = ?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?