On Friday, Michael's plant was 5/6 foot tall. It had grown 1/3 from Wednesday to Friday. It had grown 3/8 foot from Monday to Wednesday. How tall was Michael's plant on Monday?

Factor this polynomial completely x^2-64

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?