What are the answers to these questions
and pls i need them NOW pls

3/4 ÷ 2 1/4
11/12 ÷ 1/5
2/5 ÷ 2
3 5/8 x 1 5/6
18/20 - 2/6
1 6/9 ÷ 1/3
pls help i am sooo dumb

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

Find the solution(s) to x^2-14+49=0