Given a right triangle with legs a and b and hypotenuse c, find the length of side b if
c=2b, a=12

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?