Find the gradient of the line segment between the points (2,3) and (4,7)

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Math it's appreciated. (picture provided)

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.