To make one cheese sandwich, tina uses one bread roll and two cheese slices.
pack of 15 bread rolls £2.23. pack of 20 cheese slices £1.91 she is going to buy enough packs to have exactly twice as many cheese slices as bread rolls make more than 100 cheese sandwiches. work out the least amount she can spend.

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

answer: integers are just whole numbers: positive, negative, and zero.

i = {-∞, -2, -1, 0, 1, 2, 3, ∞}

let x = 1st integer

let y = 2nd integer

x = 3y + 17   {equation 1}

xy = -24         {equation 2}

substitute 3y+17 in place of x n equation 2

and solve for y.

(3y+17)y = -24

3y2 + 17y = -24

3y2 + 17y + 24 = 0

from quadratic equation:

y = [-17±√(172-4(3)(24))]/(2(3))

y = (-17 ±√1)/6

y = (-17+1)/6   or     y = (-17-1)/6

y = -16/6           or     y = -18/6

y = -2 2/3         or   y = -3

since we are dealing with

y = -3

x = 3y+17 = -9+17 = 8

the integers are -3, 8

step-by-step explanation:

b. is true. hope this . happy

the graph line crosses the x axis at both -6 and -2, so the answer would be the second one.