Adealer has a lot that can hold 30 vehicles. in this lot, there are two available models, a and b. the dealer normally sells at least twice as many model a cars as model b cars. if the dealer makes a profit of $1300 on model a cars and $1700 on model b cars, how many of each car should the dealer have in the lot given that the total profit for the sale of both cars is $43,000?

I’m confused on how to work the pie charts

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?

Recall that two angles are complementary if the sum of their measures is? 90°. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.