A collection of dimes and nickels has a total value of two dollars and contains 28 coins. How many dimes are there in the collection? A.)14 dimes
B.)8
C.)12
D.)10

Can any one me with the answers to these questions asap?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

Which strategy is used by public health to reduce the incidence of food poisoning?