∠A and angle ∠B are vertical angles. If m∠A=(5x-3)∘ and m∠B=(4x+21)∘then find the measure of ∠A.

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

Normal yağmur ile asit yağmuru arasındaki fark nedir

Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.