Four ! 15 !and show work

1) 0.2 (m - 8) = 0.3m + 5 - 3 + 0.3m

2) 3/2x - 2.2 = 2 (0.7x - 1)

3) 0.2 (2x + 1/2) = 5 [ 0.5 + (-2) ]

4) a line contains the points (5,3) and (0, -1). what is the equation of the line?

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose