Based on past records, a salesperson has a 15% chance of closing a sale with new customers. how many sales can the salesperson expect with his next 5 customers?

a. 0.75
b. 1.55
c. 3.5
d. 4.25

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?

Tell whether the two rates form a proportion