Espanol The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 32
minutes of calls is $15.20, and the remaining credit after 49 minutes of calls is $12.65. What is the remaining credit after 65 minutes of calls?
Remaining
credit
(in dollars
sl
х
?
Calling time
in minutes)

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1