If a student wanted to design an experiment that uses sound scientific principles which of the following should he or she NOT do

-Start with a hypothesis

-Test more than one variable at a time

-Record data in a table

-Compare results with others

What is 3a (4+a) as the sum of monomials?

James buys a baseball bat for $24.39, a baseball for $5.99, and a baseball cap for $12.89. How much money does James spend altogether?

Santiago, a park ranger, was trying to estimate the number of catfish in a lake. He randomly caught 32 catfish, tagged them, and let them go. Six months later, he surveyed fisherman at the lake about how many catfish they caught that were tagged.

What is more I centimeter or 1 kilo

Tennis balls are packed into a square box 23cm on one side. The tennis balls can be touching, but they can't be compressed. (1in=2.54cm, Height of a tennis ball is 2.6 in). The remaining space is filled with packing beads.

3X + 8 - X = 4 - 2X + 32 find x

A penny is 0.061 inch thick. What is the value of the 6 in the thickness of a penny

After 3x - y = 7 is put in slope intercept form, the slope and intercept are: A. m = 3, b = 7 B. m = - 3, b = - 7 C. m = 3, b = - 7 D. m = - 3, b = 7

Write a situation for 15x - 20 ≤ 130 and solve

Using first and second differences, calculate the next three terms in the following sequence. 7, 9, 15, 26, 43, ... A. 67, 99, 140 B. 72, 106, 149 C. 66, 98, 139 D. 66, 98, 141