The two numbers are both -15
-15 x -15= 225
-15+ -15= -30
Since it's a wall, I'm guessing it will only have access to half the circle? Therefore:
<em>Circle area formula: </em>πr²
<em>Radius:</em> 12/2 = 6ft
<em>Our case:</em>
(π * 6²)/2 =
36π/2 =
18π = 56.55ft²
The new model is 11/40 of an inch thinner than the old model.
In order to do this, we need to subtract the new model from the old model.
7/8 - 3/5
In order to complete this, we will need common denominators.
35/40 - 24/40
Then simply complete the operation.
11/40
It is given in the question that
Jess has dinner at a restaurant. The dinner bill is B dollars. She pays a 21% tip.
THerefore,
Jess's bill amount without tip is $ B.
Jess's tip amount is 21 % of B or 0.21B
THerefore Jess's total amount is the sum of Jess's bill amount without tip and Jess's tip amount, that is

Hence, Jess's total amount is 1.21B .