Which is the first step in simplifying the expression 2(x + 3) + 5?
2x + 2(3) + 5
2x + 3 + 5
2 + x + 3 + 5
2(5) + x + 3

2x + 2(3) + 5

Step-by-step explanation:

The first step in this type of expression is to develop the parenthesis, that is, to multiply the components within the parenthesis by the term that is just outside it.

In this case the first step is as follows:

2x + 2(3) +5

which is to multiply the 2 by the x and the same 2 by the 3 to remove the parenthesis, so the answer is the first option.

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.

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step-by-step explanation: