kara opens a savings account with $500 she makes no changes to this account for 2 years her account has a compound interest rate of 3% per year, compounded annually. what will be the total amount in the account at the end of the 2 years

With these 5 geometry questions! pls 1.)quadrilateral abcd is inscribed in this circle.what is the measure of ∠a ? enter your answer in the box.°2.)quadrilateral abcd is inscribed in a circle.what is the measure of angle a? enter your answer in the box.m∠a= 3.)quadrilateral abcd is inscribed in this circle.what is the measure of angle b? enter your answer in the box.m∠b= °4.)quadrilateral abcd is inscribed in this circle.what is the measure of angle a? enter your answer in the box.°5.) quadrilateral abcd is inscribed in this circle.what is the measure of angle c? enter your answer in the box.°

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!