8m+6 What is the constant

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

What ia the sum if the first 7 terms of the geometric series

Carli has 90 apps on her phone. braylen has half the amount of apps as theiss. if carli has three timesthe amount of apps as theiss, how many apps does braylen have? let b represent the number of braylen's apps and t represent the number of theiss's apps.