You have $28 to spend on Tech-decks and Takis. Tech-decks cost $7 each and jumbo bags of Takis cost $4 each. Let x = # of Tech-decks
Ley y = # of bags of jumbo Takis

What equation should you use for this word problem?
28x+7y=4
4x+7y=28
7x+4y=28
4x+28y=7

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

For range i think it’s area

The answer would be $68.04