Maria buys 8 1/3 pounds of beef to make tacos for a party. she uses 5/9 pound of beef for each taco. how many tacos can maria make?

Five dinosaurs go for a walk and come across some lovely chicken wings. their names are rexy, bronto, steggy, paly, and terry. there are exactly 5 dozen wings(equal enough for each dino to have a dozen right? ); however, terry is on a diet and he only eats 6 wings. if paly eats 2 more than terry, steggy eats 4 more than paly, and bronto and rexy eat the same amount because they are really hungry from not eating all day, how many chicken wings did each dino eat?

What is the lcm of 16 and 40 ? 24 and 40 ?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)