Two fifths of the senior class earned a grade of b+ or higher on an advanced mathematics exam. if 42 seniors scored at least a b+, how many students are in the entire senior class?

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

What is the perimeter of a rectangle if the length is 5 and the width is x?

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.