\dfrac{1}{5}(6+3+1)^2 = 5 1 ​ (6+3+1) 2 =start fraction, 1, divided by, 5, end fraction, left parenthesis, 6, plus, 3, plus, 1, right parenthesis, squared, equals (any help!?!?!?!?

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details

3questions show how you solved the problem 1. subtract & simplify (–y2 – 4y – 8) – (–4y2 – 6y + 3) 2.multiply and simplify 2x2y3z2 · 4xy4x2 3.multiply and simplify (x – 4) (x2 – 5x – 6)