Gratchen has 48 small shells

Which option yielded the highest amount at 30 years and what was the basis of the plan

6x less then or = to 4y+60

How many two digit numbers are divisible by either 3 or 5?

The keyless entry system in some cars uses a 4-digit keypad. There are 10 possible digits, and the digits can be repeated. How many different combinations are there?

A fish tank is 3 feet by 4 feet by 5 feet. How many gallons of water will it hold? A cubic foot of water is 7.5 gallons.

What is the value of the expression 3972 : 12

A 1,152-foot tree has grown at a constant rate each year. In the equation below, t is the age of the tree in years. 24t = 1,152

The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 43 minutes of call is $19.84, and the remaining credit after 65 minutes of call is $17.20.

Find the second term of this sequence? 3n^2-1

Is 7.5 less or greater then 7.05