In 20 minutes, i ate 1 1/2 sub sandwiches. < br /> < br />
a. what is my rate in sandwiches per hour? < br /> < br />
b. what is my rate in hours per sandwich?

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.