ElectricPavlov

It is a square.....   the smaller one is   2 x 2  = 4      the larger is 3 x 3 = 9

   so the dilation went from   2 to 3     the scale factor is thus  1.5  = X

(6 x 8 in²)  *   $ 2.25 / in²   = .......

Ok...thanx for that !   This looks like a cosine function doesn't it? 

BUT it is taller than a normal cosine function....usually the height of the wave goes from -1 to 1       which means amplitude is 1

    THIS wave goes from 8 to 72      so amplitude is   32     ( 1/2 of the height is amplitude)

32 cos x        so far

  Now,     note that the wave is shifted UP from it's normal midline of zero..... the midline of this wave is 40

32 cos x       + 40

The period is the amount of x axis this wave takes to make a complete cycle.....  Looks to be 100 seconds

32 cos (x pi/50)   + 40  

Check this out......I superimposed the above wave on YOUR graph !

https://www.desmos.com/calculator/ozfmq36yob

Venn diagram:

Similar      see if you can do the same with the numbers you have.....

https://web2.0calc.com/questions/help-please_25780

Plot all of those points......   then bring the graph back here and we can help you further......    

I thought we already decided that f<= 11.25 lb   Why is this posted THREE times????  

a + b = 39 + c

c = a - 23

a + b + c = 211     but a+b = 39 + c

39 + c  + c  = 211

c = 86      = a - 23               so a = 109      then b = 16

725 tix total

x  = adult                 revenue from adult tix = $2.50 x

725-x = child           revenue from child tix = $ 1.00 (725-x)       revenues summed = $ 1325

2.50 x  + 1.00 (725-x)  = 1325      solve for 'x' the # adult tix.......then child tix = 725-x     

https://web2.0calc.com/questions/algebra-help-pls_1