1. Robin just bought a new fish tank. The tank is 14 inches tall and has a diameter of 8 inches. How much water can Robin put in the tank?

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Hannah is 3 years older than twice her brother joey’s age. joey is 2 years old. how old is hannah? show all of your work! the number of students is five more than seven times the number of teachers. there are 10 teachers. how many students are there? be sure to show all of your work!

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.