In an automobile factory the number of cars coming off the assembly line in one day is supposed to be 500, One week the plant operated normally on Monday. On Tuesday there was a breakdown which decreased the number of completed cars to 425 for the day. On Wednesday operations were back to noml.

(a) What was the percent of decrease in production on Tuesday compared with Monday?

(b) What was the percent of increase in production on Wednesday compared with Tuesday? 

A government bond which costs $18.75 is worth $25.00 ten years after it is purchased, By what percent did it increaae in value over the ten years? What was the average percent of increase per year?

In a certain store each customer pays a sales tax of 2% and is given a 10% discount for cash. That is, if a customer purchased an article priced at $100 and paid cash it would cost him $90 plus the sales tax or $91.80, since 2% of $90 is $1.80. Suppose the sales tax were computed on $100 and then the 10% discount allowed, would the resulting net cost be the same? why or why not? 

A trlangle has sides of length 11 inches, 8 inches, and 6 inches. If another triangle, the measures of whose sides are in the ratio 11 to 8 to 6, is to be drawn with a perimeter of 100 inches, how long will the shortest side be? 

A motor scooter can go 30 miles per hour. How many feet per second is this?