To find the area of a circle, you do π × diameter (in this case 10). They have told you to use 3.142 as π, so you do 3.142 × 10 = 31.42. Because it's a semi-circle, you need to halve 31.42 to get 16.21, which is the answer
First do $70(4). That would equal $280. Then do $280+$40=$320
There are 6 nickels and 14 pennies.
There are 20 total coins.
The ratio of nickels to coins is 6:20.
Both of these are divisible by 2, so we can reduce this to 3:10.
Answer:
The answer is D.
Step-by-step explanation:
sooo UwU which becomes O////O then becomes T.T
Number 1.
, first we will take the 
of both of these numbers getting us,
, which then gives us that 
Number 2
, solve for our exponent, 
, use the logarithmic formula, and we get,
, which then we get that 
