Gianna is substituting t = 2 and t = 7 to determine if the two expressions are equivalent. 5(2t+3) 5t+25 which statement is true? a. both expressions are equivalent to 35 when t=2. b. both expressions are equivalent to 85 when t=7 c. both expressions are equivalent to 60 when t=7 d. the expressions are equivalent.

A. Both expressions are equivalent to 35 when t=2.

Step-by-step explanation:

Given: Gianna is substituting t = 2 and t = 7 to determine if the two expressions are equivalent.

At t=2

Therefore, both expressions are equivalent to 35 when t=2.

At t=7

Hence, A is the write 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.