streak! Cody was 165 cm tall on the first day of school this year, which was \( 10 \% \) taller than he was on the first day of school last year. How tall was Cody on the first day of school last year? stem

Heather is building a model volcano for the science fair. To find the right ratio, she starts by mixing small amounts of baking soda and vinegar. She finds that adding 1.5 teaspoons of baking soda for every fluid ounce of vinegar produces the best eruption. If Heather plans to use 0.5 cups of vinegar for her project, how many tablespoons of baking soda should she use? Hint: There are 3 teaspoons in 1 tablespoon. There are 8 fluid ounces in 1 cup. Write your answer as a whole number, decimal, or simplified fraction. Do not round.

4. Grandma's cookie recipe calls for \( 1 / 2 \) oup of oatmeal for every \( 3 / 4 \) cup of flour. How much flour will Grandma need if she uses 2 cups of oatmeal?

Calcule o sexto termo de uma PA. Sabendo que a \( 1=-2 \) e \( r=1 / 3 \)

Quantos números pares existem entre os números 157 e \( 707 ? \)

Determine a razão de uma PA que tem a1= \( =-8 \) e a17=16.