CPhill

4 terms

3 coefficients   { 5, 2 and  -3 }

Remember that 6%  = .06

Let the total  cost be  T...so...

T  =  C +  .06C        we can simplify this as

T  =  C (1 + .06)

T  = C (1.06)

Let  x  be the first integer

x + 2  the second

x + 4 the third

x + 6  the fourth

So  we have

x  + (x + 2)  + ( x + 4) + ( x + 6)  < 192  simplify

4x + 12 <   192     subtract  12  from  both sides

4x < 180     divide both sides by  4

x < 45

So......the greatest even integer < 45  is 44

So...the four consecutive even integers   are  44  46   48   and 50

And their sum is 188

I think these might all be the same type of problem

2. Area  =  (1/2)(13) (7.5)sin(94)  =  48.6 in^2

3.  Area  = (1/2) (4) (8.5)sin (25)  = 7.2 m^2

4.  Area   =   (1/2)(4) (5) sin (79)   =  9.8 ft^2

5. Area   = (1/2) (40) (25) sin (80)  = 492.4 m^2

What do you need to calculate, Sam???...area or volume    ???

The surface area  is given by :

2 * [ 29 * 19  + 29 * 6.5  + 19 * 6.5 ]  =

2 * [ 551  + 188.5  + 123.5 ]  =

2 * [  863 ]  =

1726 cm^2 

OK, Rick  !!!!

[ You may have to remind me of your name from time-to-time  !!! ]

Try this, Sam  

OK, Pheonix.....!!!

Here again, GM....a graph might be the best way to go

y  = 0.7x^2 - 4.3x + 5.5

See the graph, here :

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

This occurs in about the 8th year after 1985    [ in 1993 ]