You are going to hang strands of lights around each room. The perimeter of each om is 48 ft. How many strands of 50 in. lights will you need to decorate your 4

poms? What would be your unit rate of strands of lights to rooms.

47 strands

12 strands

Step-by-step explanation:

Given that:

Perimeter of a room = 48 feets

Number of rooms = 4

Strands of light to be used = 50 in

Converting the perimeter of a room to inches :

1 foot = 12 inches

48 feets = (12 * 48) = 576 inches

Total perimeter of the rooms in inches ;

576 inches * 4 = 2304 inches

Strands of 50 in light required for the 4 rooms;

2304 inches / 50 inches

= 46.08

= about 47 strands

Strands of light per room :

46.08 / 4

= 11.52 (about 12 strands)

= 12 strands

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