50 I believe just times 10*5 I think that's wut u get when u use the cal. And use the combination button
9.
( 5 / 8 ) * ( 2 / 3 ) = 10 / 24 = 5 / 12 A ;
10.
( 11 / 12 ) ÷ ( 5 / 7 ) = ( 11 / 12 ) * ( 7 / 5 ) = 77 / 60 = 1 17 / 60 D ;
11.
3 / 8 B;
12.
2 5 / 8 = 21 / 8 ; the reciprocical of 21 / 8 is 8 / 21 C ;
13.
$12.50 * 34.5 =$ 431.25 C ;
To do this we just find the area of the rectangle
Then we subtract half the area of the circle form it
We are subtracting only half because that is the amount of the arena in the car park
where l = lenght
w = width
r = radius
radius = diameter/2 = 50/2 = 25
area of rectangle = lw
area of circle =
lw - 1/2(
)
(75)(100) - 1/2(3.14)(
)
= 5537.5
Divide 20/4 to get 5. I am assuming the way the slope is leaning, that it is (-5 ). Hope this helps.