Math textbook weights 4.21 ounces and his social studies book weighrs 3.99 ounces. what is the difference in weight between the two books

What is a word problem I could use for 4 x - 2?

What is six less than seven times a number is equal to - 20

The population of a town can be modeled by the regression equation y=23,000 (1.05^x). which is the best prediction for the population in year 30? A. 70,645 B. 99,405 C. 55,352 D. 58,120

Marvin scored 96 93 97 and 92 on four out of five math tests. in order to receive the highest grade in the class, he must obtain anad average score of at least 95 for the five tests.

How many zeros are significant figures in a measured mass of 0.010010 g?

What is 12/18x*3=59 I need to know what this and so I can get a good grade on my math home work but I need this one to get better at what I need to be done in my advanced math class.

How long Will it take

It has a one solution of x=3 and the equation is 4 (5x-4) = 4x

Which equation has no solution? 4x + 3) + 2x6 (x + 2) 5+2 (3 2x) = x + 3 (x+1) 5 (x + 3) + x = 4 (x + 3) + 3 4 + 6 (2 + x) = 2 (3x + 8)

A teacher promised a movie day to the class that did better, on average, on their test. The box plot shows the results of the test: box plot labeled 2nd period with min at 77, Q1 at 78, median at 89, Q3 at 92, max at 100.