ElectricPavlov

6x-20 = 52

6x = 72

x = 12

y = k x z

60 = k * 3 * 4

k = 5

y = 5* x * z

   = 5 * 6 * 8 = 240

Big rectangle     10 x 15    plus two triangles    2 x   1/2 X 5 x 4 = ........ cm²

The greatest difference between f(x) and g(x) is shown below:
 

arcsin (-.73)  = - 46.886 degrees     = 313.11 degrees   

   there will also be a value in Q III

    and one more (again in Q III)   for   less than 630 degrees             three

sin = opp/ hyp

sin48 = x/20

x = 20 sin 48 = ..........

700 ( 1 - .055)⁶ =  £ 498.53

Payment made at end of periods    so  'ordinary annuity' calculation

FV =   PMT *  [ (1+r)ⁿ -1 ] / r        

                                                  r   for all of these = .08/4           PMT = 150  

                                                   n is the number of quarters:

                                                                      a.  16      b. 3      c.  27      d.  82  

Just plug in the numbers and calculate for each of the time periods 

      ,.......I would recommend doing each twice to check these complex calculations !!  

Payment made at end of periods    so  'ordinary annuity' calculation

FV =   PMT *  [ (1+r)ⁿ -1 ] / r         r = decimal interest for period (period is 6 months)   =  .055/2

                                                      n = number of periods  6 x 2 = 12

                                                      PMT = 1000

                                                       FV = how much it is worth at the end of 6 years

plug in the numbers to get  $ 13992.14

40% of x = $ 85

x = 85 / .4 = $ 212.50 originally in savings