It has 2 pairs of congruent sides . all 4 angles are congruent. what is the mystery

You call the pizza store and find out that eachpizza has 12 slices. you expect 16 people tocome, and you estimate each person will eat 3slices. how many pizzas should you order

Aline passes through 3,7 and 6,9 what equation represents the line

Can some one explain how to slove specifically, what is the value of x? 0.9(x+1.4)-2.3+0.1x=1.6 enter the answer as a decimal in the box. x= ?