1. Twenty-one is equal to the sum of two x's plus nine and four tenths. What is x?

Adriano loves anime and collects toys from his favorite series.each month he gains 4 toys. if adriano has 3 toys when he starts collecting, how many does he have after 4 months

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.