What is the sum of the first 18 terms of the arithmetic series 11+15+19+23+

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3