What is the simple interest of $ 1500.00 for 4 months at 6 3/4% annual

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

What is the value of x in the following equation? -3x-2=2x+8