Tim bought 7 new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there are now only 44 cards left. how many cards did tim start with?

An isosceles triangle has two sides of equal length, a, and a base, b. the perimeter of the triangle is 15.7 inches, so the equation to solve is 2a + b = 15.7. if we recall that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side, which lengths make sense for possible values of b? select two options.