Which are true of the function f(x) = 49()x? check all that apply.

a-- the domain is the set of all real numbers.
b-- the range is the set of all real numbers.
the domain is x > 0.
d-- the range is y > 0.
e-- as x increases by 1, each y-value is one-seventh of the previous y-value.
f-- the initial value for the function is 7.

Listed below are the measured radiation absorption rates? (in w/kg) corresponding to 11 cell phones. use the given data to construct a no plot and identify the 5- number summary

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.