On monday, ken spent half of his money on a new game. the next day he earned $12 mowing lawns. he now has $32. how much money did ken have before he bought the game?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

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.

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio