OMG! HELP! the number of f of miles a ship is from destination x hours after starting a voyage is given by f(x)=80-20x. the number f of miles a submarine is from its destination x hours after leaving port is shown in the graph below. state the distance and length of time of each voyage.

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?

Find the vertex of the function given below y=x^2-6x+1

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²