Ineed in this one (explanation) ill give 20pts

(y-3)(4y-5)

Step-by-step explanation:

4*15= 60. 60= -12 x -5

4(y-12)(y-5)

(y-3)(4y-5)

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb