Simplify completely quantity x squared plus 4 x minus 5 over quantity 5 x squared minus 8 x plus 3 times quantity 20 x minus 12 over x squared minu. 4 over quantity x plus 5
4 open parentheses x minus 1 close parenthesis over quantity x plus 5
4 over quantity x minus 11
4 open parentheses x plus 5 close parentheses over quantity x minus 11

idk

step-by-step explanation:

i don't know

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

we need to divide the number of toy dinosaurs, 156, by the number of brothers, 4:

in order to estimate, we can use compatible numbers:

156 ÷ 4

  ↓

160   ÷ 4 = 40        

the correct answer is a).