A bag of a certain type of sand weighs 42 pounds and has a volume of 0.5 cubic feet. A sandbox has a volume of 16 cubic feet. Approximately how many pounds of sand will it take to fill the sandbox?​

1344

Step-by-step explanation:

2 bags of sand = 1 cu ft

2 bags of sand = 84 lbs

Sandbox holds 16 cu ft

16 cu ft * 84 lbs per cu ft = 1344 lbs

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.