This number is written in scientific notation. What is the exponent? 3.5×10^6

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

Jim had 3,067.48 in his checking account he wrote a check to pay for two airplane tickets. his account now has 1,845.24.

Measure a and b and find their sum. how are the angles related?