What is an expression with a negative exponent that has a value between 0 and 1/2

Most evenings after dinner Duarte spends 30 minutes playing chess with his dad. Write an equation for the number of minutes, m, that Duarte spent playing chess with his dad if they played chess together e evenings.

2x+3y=6 4x+6y=12 How many solutions does the system of linear equations have? Explain your reasoning.

Keith ran a total of 6 miles over the course of 3 track practices. How many track practices would it take for Keith to run 16 miles? Assume the relationship is directly proportional.

The angles of a quadrilateral measure 80 degrees 2/100 degrees 100 degrees and it is agreed in this order what kind of going to the other room has this shape how do you know

At a local tech school, there are 6 math classes and each class has 27 students. The school pays for the book and calculators for each student. Each book costs $45.10 and each student calculator costs $57.80.

Suppose tom has 16 coins totaling $2.50. if he has only dimes and quarters, how many of each type does he have?

Kara has four boy cousins and three girl cousins. Write a fraction to represent the part of her cousins that are girls. Use / for the fraction line.

Find the area of the figure. 9 in. 11 in. 11 in. 6 in. 9 in.

A production process produces 2% defective parts. a sample of 5 parts from the production is selected.

Use words to compare the size of the product to the size of the first factor