At a middle school, breakfast costs $1.25 and lunch costs $3.75. what percent of the cost of lunch is the cost of breakfast? (show all work! )

33.3%

Step-by-step explanation:

Cost of breakfast = $1.25

Cost of breakfast = $3.75

We have to calculate what percent of the cost of lunch is the cost of breakfast. This can be done by dividing the cost of breakfast by cost of lunch and multiplying the result by 100% as shown below:

Thus cost of breakfast is 33.3% the cost of lunch.

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.

a

step-by-step explanation: