A quadrilateral has two angles that measure 20°and 50°. The other two angles are in ratio of 10:19.What are the measures of those two angles?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.