. Leon wrote an expression that is equivalent to (30 + 6) ÷ 12. Which expression could be the one Leon wrote?
36 ÷ 3 ⋅ 4
(3 ⋅ 3 ⋅ 4) ÷ 4 ⋅ 3
5 ⋅ 6 + 2 ⋅ 3 ÷ 3 ⋅ 2 ⋅ 2
(3 ⋅ 3 ⋅ 2 ⋅ 2) ÷ (3 ⋅ 2 ⋅ 2)
(i need help STAT)

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.