Answer in simplest fractional form. negative 1 fifth + negative 3 fourths =

Elijah brought a total of 16 pounds of peanuts and cashew nuts and paid $49.50. if peanuts cost $2.75 per pound and cashew nuts cost $3.25 per pound, how many pounds of cashew nuts did he buy?

Trigonometry help asap

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy