Bob is putting a mat of width 3w inches and a frame of width w inches around a 16-inch by 48-inch poster. write an expression in standard form for how much framing material he needs.

(c, 0) i might be wrong so don't put full faith on my answer

number one is the correct answer

step-by-step explanation: dogs and cats are mentioned, no other animals

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."