Melissa’s birthday is in a week and she has been receiving cardsin the mail with different amounts of money. she has received 5 cards with the following amounts: $10, $20, $25, $30, $40. if melissa receives one more card in the mail with $25, will the mean increase, decrease, or stay the same?

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.