Use the formula for the sum of an arithmetic series: �2(�1+��)2n(a1+an).
If 4�+3=154b+3=15, what is the value of �b?
What is the value of 3333?
If �−3=7x−3=7, what is the value of �x?
The ratio of the angles in a triangle is 2:3:4. What is the measure of the smallest angle?
Solve: 23÷5632÷65
Solve: 2�+5=152x+5=15
What is the next term in the sequence: 2, 5, 10, 17, ...?
If 2�−5=112a−5=11, what is the value of �a?
If 2552 of a number is 18, what is the number?
If 3�−2=163c−2=16, what is the value of �c?