After 9 new members joined the ski club, there were 38 members. how many members had been in the club previously?

29 .

Step-by-step explanation:

тнєяє ωαѕ 29 мємвєяѕ ρяєνισѕℓу

Step-by-step explanation:

αℓℓ уσυ иєє∂ тσ ∂σ ιѕ ѕυвтяα¢т: 38-9=29

нσρє ι ¢συℓ∂ нєℓρ уσυ συт

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.