Estimate with one digit

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How do I write the ratio of 28 inches to 5 feet as a fraction in simplest form?

True or false: the absolute value of a number is always positive.

Ronnie is scheduling a chess tournament in which each player plays every other player once. He created a table and found that each new player adds more games to the tournament in an arithmetic sequence.

Jaxon has 14 red pencils and 4 blue pencils in his pencil box. He selects 2 pencils, with replacement. What is the probability that Jaxon selects 2 blue pencils

Vance has 3 more than twice as many nickels than dimes. If he has $2.75, how many nickels does he have?

What fraction is equivalent to 5.1? is 5.1 a rational number?

Natalie has a choice of three breads, five choices of meats, and four choices of cheese to make a sandwich. how many different sandwiches can she make?

What is the area of this triangle 12 inches and 3 inches

Write as an expression and simplify: the tripled product of 6a and b^2

What does n equals when 10 = - 8+n divided by 4