(b) What per cent is1/2
dozen of one score?

Use the distributive law to multiply. 3(4x + 5y + 6)

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?

Write the factored form of this trinomial 9x^2+18x-7