Dorthy had a balance of $-200 in her bank account. on Thursday she deposited $350 into her account. what was the new balance in her account? (please help me this is due by 11 .)

2÷6+1/2 to the second power plus one

What is the quotient of -3/8and-1/3?

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais