Sarah bought s yards of satin fabric priced at $7.08 per yard, and c yards of cotton fabric priced at $3.82 per yard. Part B: If she bought 4 yards of satin fabric and 9 yards of cotton fabric, how much did Sarah spend in all?

Multiply. write your answer in simplest form. 3/8 x 5/7

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.