What is 43,000,000,000 in scientific notation

What is the sum of all of the two-digit primes that are greater than 12 but less than 99 and are still prime when their two digits are interchanged?

A class of 18 students took a math test. Seven students had an average of 90. The other students had an average of 82. What is the average for the whole class? Round to the nearest whole percent. A) 80 B) 83 C) 85 D) 87

In bulk, jelly beans cost 18 cents per ounce. What is the cost of the jelly beans in dollars per pound? $0.18 per pound $1.13 per pound $1.44 per pound $2.88 per pound

Ralph has a piece of shelving 3 m long. He is going to cut it into 4 equal lengths pieces. how long will each piece be?

How to tell if a graph is proportional or not

What's the simplest form of the fraction 85 over 204

What is - |2x-6| greater than 8

Write the fracions in order from least to greatest 4/6 7/12 5/10

What is the place value of the diget 6 in the decomal number 4.769

What are the solutions to 4 (x-3) ² = 64?