Benecio worked 40 hours at his two jobs last week. he earned $20 per hour at his weekday job and $18 per hour at his weekend job. he earned $770 in all. how many hours did he work at each job? tell me the system of equations as that's what i need to solve it.

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x

How do you write something in scientific notation?