What is the product of 3/5 of 40

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Equation for the calculation double 2 and then add 5

Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)