4^{5} times 4^{3} what's the answer

possible answers
4^{8} , 4^{15} , 16^{8} , 16^{15}

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

How many ordered pairs of positive integers satisfy xy=32?