The sum of interior angles in a regular heptagon is 900∘900∘.
The average of three numbers is 15. If two of the numbers are 12 and 18, what is the third number?
If 5�+2=275u+2=27, what is the value of �u?
Solve for �x: 49(18−�)=894(18−x)=8
If 3�−5=103v−5=10, what is the value of �v?
What is 15% of 80?
Solve for �x: 15(15−�)=251(15−x)=2
The volume of a cylinder is 36�36π cubic units, and its height is 3 units. What is its radius?
Express 0.4 as a fraction in simplest form.
If a rectangle has a length of 10 units and a width of 5 units, what is its area?
If 5�+2=275y+2=27, what is the value of �y?