SpeakALot charges its customers $2 plus $0.75 per minute for long distance calls. TalkComm charges its customers $1 plus $0.80 per minute for long distance calls. Find the length of a call for which the two phonecompaniescharge the same amount.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is