You deposit $200 in account earning 3.5% simple interest. how long will it take for the balance of the account to be $221?

required time=3 year

Step-by-step explanation:

simple interest=

where P=principle

          R=rate of interest

          T=time

totel amount=principle+interest

interest=totel amount-principle

interest=$221-$200=$21

ac/ques, 21=

21=

T=3 year

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