ElectricPavlov

sin = 2 cos       divide both sides by cos

sin / cos  = 2

tan = 2

arctan(2) = angle A = 63.4^o

sin 73 = opposite side / hypotenuse

sin 73 = x / 15

15 sin 73^o = 15       (you will need a calculator to finish)

Need the tax tables you are using ......

   according to 2020 tax tables   12% bracket is  $ 9876  through 40125

    If paintings are   500 dollars each (from  another of your posts)    9876/500 = 19.752 painitngs   

               the 20th painting Jackie sells will put jackie in the 12% bracket

J = 500P   -  3275

What tax tables are you using ?    

2020 tax table put that amount of income in the 12% bracket

income below 9875 is taxed at 10 %    (from the tables)

tax total =   .10 (9875)    +    .12  (income - 9875)

Trapezoid area      (24 + 16)/2  * 19.2 = 384 in²

a + b = 485        or     b = 485 - a

a-b = 303

a -  (485-a)  = 303

2a = 303 + 485

a = 394 ton

b = 485-a

 b = 91 tons

a = 31     b = 38       x = 133 degrees     y =    180 - 133 = .........^o

At x = 0

f(x) = 4 + e^{0     =   4 employees initially}

150 = 4 + e^x

146 = e^x

ln (146) = x = 4.98 ~~~ 5 minutes

Large L rectangle      6 x4

R rectangle                5 x3

Triangle = 1/2 bh      1/2 *2 * 3           Add the reds together.....