Lani has 84 Lego blocks and 25% were red. How many red Lego blocks does Lani have? Show and explain your work.

21

Step-by-step explanation:

84x0.25=21

25% is 0.25 as a decimal.  Multiply it times 84 to find the answer.

2

step-by-step explanation:

vvvvv

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4