When I was 2 years old, my sister was half of my age. Now Im 80 years old, how old is my sister?

4/10:2/3 how do I do this?

What Percentage did you tip if your lunch was $10 and you left $2

Hannah has 3 3/4 cups of spinach. Each salad requires 1 1/2 cups of spinach. How many whole salads can she make?

Determine the validity of the following argument: For students to do well in a discrete mathematics course, it is necessary that they study hard. Students who do well in courses do not skip classes. Students who study hard do well in courses.

2x + 3y = 12 What's the 2 variable equation Aneser

What does the 6/8 simplify to

At 7:00 a. m., the temperature in Belleville, Ontario was - 4°C. The temperature increased by 1°C each hour for the next 5 h. What was the temperature at noon?

Toms tunes: $60 per hour. Sabrina's sounds: $100 set up fee plus $40 per hour DJ Derek: $175 set up fee plus $30 per hour. for each DJ, write and equation that shows how the cost c relates to the number of hours x.

Identify the two variables that make up the relation described in this statement: The number of hot dogs sold depends on the price of the hot dog. Choose all that apply.

Classify the area of a circle with a radius of 0.75 centimeters as either rational or irrational. Rational Irrational