Theresa's Treats sells cookies and pastries. The price of each cookie is $2, and the price of each pastry is $3. If
Alison purchased a total of 50 cookies and pastries for
$120, how mapy pastries did she purchase?

The sum of the lengths of all the edges of a cube is 6 centimeters. what is the volume in cubic centimeters of the cube

Abacterium was found to contain a sequence of atcgggatcct in its genome. a few generations later, the sequence was found to be atcatcct. what type of mutation caused this change in the bacteria? a. duplication b. insertion c. inversion d. translocation

Which of the following ideas did greek philosopher democritus contribute to the atomic theory? a. each object is made up of one atom, which varies in size from very small to very large. b. matter is composed of only one kind of particle, which can be easily destroyed. c. every element has a specific type of atom, which remains the same size in all forms of matter. d. all matter is composed of small particles, which combine to make larger objects.