The half-life of a first-order reaction is 13 min. If the initial concentration of reactant is 0. 085 m, it takes min for it to decrease to 0. 055 m.

Vera is on her school's track and field team. in a practice long-jump competition against her teammates, she gets 5 points for landing over the farther line. she gets a total of 7 jumps and lands x times over the farther line and the rest of the times over the closer line. which of the following functions represents vera's total score? a. f(x)=10x b. f(x)=5x+35 c. f(x)=10x+5 d. f(x)=70-5x

Tissues that carry food water and nutrients throughout the plant

Sweater originally priced at $65 is on sale for 15% off. you also have a coupon that takes another $10 off. what percent of the original price do you pay?