* Required
1) A key ring has 12 keys, 3 of which open the house door. If two keys are
randomly selected without replacement, what is the probability that neither key
opens the door? *
O 1/22
09/16
O 6/11
O 21/22

What is the area of the trapezoid shown ?

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%