What are the possible lengths for x, the third side of a triangle, if two sides are 13 and 7?

Given this information, which expression must represent the value of b?

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Sheila wants to bake six muffins but the recipe is for 12 muffins . this means you only need half of the ingredients listed how much of the of each ingredient does she need? one cup and banana chips ,7 tablespoons oil , two eggs, 3/4 cups flour 1/4 cup walnuts show all you work and justify your answer using a baby toulmin.