Which expression is equivalent to 3(5x-4) A 8x - 4
B 8x-1
c. 15x-4
d . 15x-12

Correct answer and explanation gets brainliest

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?