Answer:
The area of the shaded region is 
Step-by-step explanation:
we know that
The area of the shaded region is equal to the area of the rectangle minus the area of the circle
step 1
Find the area of the rectangle

step 2
Fin the area of the circle

step 3
Find the area of the shaded region
-----> exact value
To find the approximate value use 
-----> approximate value
Answer: $217.
Step-by-step explanation:
So he starts with 28 dollars. We want to find out how much total he makes. To do so we multiply 21 by 9 because he sells 21 ornaments at $9. 21 x 9 = 189. 189 + 28 = 217. So with the $28 from the start, he made $217.
Answer:

y=mx+c, m represents the slope while c the y-intercept. (never forget that)
Answer:
5 rings
Step-by-step explanation:
sam can only buy 5 rings because each ring cost $16 and after he bought the jeans which cost $45 it left him with only $95. so if you times 16 and 5 it gives you 80 and if you times 16 and 6 it gives you 96 but sam only had $95 left so he could only buy 5 which cost him $80. that left him with an extra $15.
Answer:
36
Step-by-step explanation:
Break it into parts to make it easier. The equation would become 16+12+8 which is 36
Brainliest is highly appreciated and goodluck!