If she lost 1/3 of her bows and still had 42, that means she had 63 bows before school because 1/3 of 63 is 21 and 63-21=42. If she got 7 for her birthday then 63-7=56. She had 56 bows before her birthday
Question 11: A. Carbon dioxide is used and oxygen is produced.
Question 12: C. A light year.
Question 13: B. Inner core
Question 14: B could be Jupiter and C could be the moon.
Question 15: B Apparent Magnitude.
I hope these are right and if not feel free to delete this. Hope this helped and that it wasn't too late.
Answer: You didn't give any data about the cylinder
Step-by-step explanation:
The cylinder is just an extruded circle. To calculate the cylinder's volume you need to multiply its base circle by the cylinder's height.
To do that, get the circle's radius and square it. Multiply the squared radius by 3.14.
After that, multiply the result by the cylinder's height
The exterior angles of any polygon will always add up to 360 degrees. Since we know all the values for every exterior angle, we can simply make the following equation:
3x + (x + 50) + 4x + (2x + 40) = 360
Simplify:
10x + 90 = 360
10x = 270
x = 27
If you want me to explain anything I did here, just ask :)
-T.B.
