The first term of a geometric sequence is 3 and the multiplier, or ratio, is 5. what is the sum of the first 4 terms of the sequence?

List the sides of δrst in in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.