He following sum 6+5n√⋅(5n)+6+10n√⋅(5n)+…+6+5nn√⋅(5n ) is a right riemann sum for the definite integral

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )