The Monthly cost C, in dollars, of tuition at a daycare center in Boston can be approximated by the equation below, where 'n', is the age of a child. a.) Solve for n in terms of C (**Answer should be an equation**)

b.) Find the age n of a child if cost of tuition is $2160

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?

The function f(x)= x5+ ( x + 3)2 is used to create a table. if x = -1 then what is f(x)?

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias