Tina sells lampshades for $7 each and paper lanterns for $4 each at a one-day craft fair. she sells k lampshades and (k + 4) paper lanterns. the expression 7k + 4(k + 4) represents tina’s total sales.
select all the equivalent expressions for tina’s total sales at the fair.
a 8k+16 b 11k+4
» 11k+16 d 7k+4k+4
» 7k+4k+16. how is it equivalent?

4xk = 4K 4x4= 16 +4K + 7k = 16+ 11k ( I would double check me

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.

pi x^2

step-by-step explanation:

pi times x squared