Arectangle’s width is one-fourth of its length. its area is 9 square units. the equation l(l) =1/4 9 can be used to find l, the length of the rectangle. what is the length of the rectangle?

Anyone know? will mark brainliest if correct

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

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. after tax the total is 45.99. what percentage of the subtotal is the total?