The graph represents the cost of a medical treatment, in dollars, as a function of time,
d, in decades since 1978.

Find the cost of the treatment, in dollars,
when d = 1. Show your reasoning.

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

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.

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?