What is the 1st term when –5z2 + 7z4 + 11z – 8z3 is arranged in descending order?

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

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

If chord ab is congruent to chord cd, then what must be true about ef and eg?