1.the sales of adultz sneakers rise from $2.1 billion to $2.6 billion. find the percent of increase. round to the nearest tenth of a percent where necessary. show your work. 2. last year a poll of 1,000 voters conducted by the staff of senator chun found that 445 people approved of the job the senator was doing. this year, a new poll of 1,000 voters shows that 225 people approve of the senator’s performance. find the percent of change in the number of voters who approve of the senator’s performance, and identify it as an increase or decrease. show your work. 3.a store marks up a gourmet coffee machine by 75%. the store’s cost for the coffee machine is $95.65. find the selling price of the coffee machine 4. in store a, a cake that regularly sells for $20.99 is on sale at 15% off. in store b the same book regularly sells for $22.99 and is on sale at 25% off. which store sells the book for the lower sale price? show your work. 5. bradley sells bouquets. his cost is $7.50 per bouquet, and he applies a 60% markup for his selling price. this past month was not a profitable one, so bradley discounts the selling price by 25% to generate more sales. what is bradley’s discounted selling price? show your work.