Corey tried to find a fraction equivalent to 3/5 His work is shown. (this is his work) 3/5=3/5X1/2=3/10. Which statement describes coryes error. (The options) A) It is impossible to find a fraction equivalent to 3/5. B) He did not mutply by a fraction equal to 1. C) He incorrectly multiplied 3/5 and 1/2. D) He should have divided by 1/2. (PLEASE HELP)​

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

What is 140% of 25? because i need

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =