Step-by-step explanation:
1.6a= -9.12
a= -9.12/1.6
=−5.7
option B
Given 4 boxes of pencils cost $5,
Unknown- slope
$1.25 per box since $5/boxes
Equation y=mx+b
Substitute $1.25/per box for m
Solve y=$1.25x
The Check
$5=$1.25/per box(4 boxes)
$5=$5
1:4 is you answer. 4-3 is 1 and you do the same to 7
The answer would round to 900<span />
