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.

Paso 2: Suma las fracciones anteriores. \( 0, \overline{72}+\frac{8}{3}-\frac{1}{2}= \)

If apples cost \( \$ 3.50 \) per kilo, how much would \( 11 / 2 \) kilos cost?

Mrs. Lee bought 10 L of paint. She used \( 1 / 2 \mathrm{~L} \) on her living room and \( 3 / 4 \mathrm{~L} \) on her kitchen. How much paint does she have left?

17. En un depósito había 3000 litros de agua y estaba Ileno. Un día se gastó \( \frac{1}{6} \) del depósito y otro día 1250 litros. ¿Qué fracción del depósito queda? A) \( \frac{5}{12} \) B) \( \frac{7}{12} \) C) \( \frac{1}{12} \)

Чтобы перевести значение температуры по шкале Цельсия в шкалу Фаренгейта, пользуются формулой \( t_{F}=1,8 t_{C}+32 \), где \( t_{C}- \) температура в градусах Цельсия, \( t_{F}- \) температура в градусах Фаренгейта. Скольким градусам по шкале Фаренгейта соответствует -90 градусов по шкале Цельсия?