Reggie had 3.9 lb. of walnuts, 4.4 lb. of pecans, 2.5 lb. of almonds, and 5.8 lb of pistachios how many pounds did he have altogether Round each and then add

17 lb

Step-by-step explanation:

if you round 3.9 to 4

4.4 to 4

2.5 to 3

5.8 to 6

and then add all together it equals 17 lb

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

x = 3 ± √(5+y)