Which of the following best represents the average rate at which infants grow in height during the first four years after birth? a. 3 inches per month b. 3 inches per year c. 3 feet per month d. 3 feet per year

B. 3 inches per year.

Step-by-step explanation:

Generally, Humans grow at a slow rate until we get the our puberty. The growth rate also depends on nutrition and the genetic. Most of the surveys shows that infants grow in height during the first four years after birth is "3 inches per year."

Therefore, the answer is B. 3 inches per year.

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .