Why an angle that is supplementary to an acute angle must be an obtuse angle

Kayla age is 3 less than twice her brother age. Kayla is 13. How old. How old is her brother?

Mrs. Danzer's car can travel an average of 24 miles on each gallon of gasoline. How many gallons will she need to travel 348 miles? Let X = Equation? Answer?

Isabella saved 2 nickels today. If she doubles the number of nickels she saves each day, how many days, including today, will it take her to save more than 500 nickels?

When solving negative one over five (x - 25) = 7, what is the correct sequence of operations? A. Multiply each side by negative one over five, add 25 to each side B. Multiply each side by 5, subtract 25 from each side C.

Alyssa had Pokemon cards. she gave 8 to her friends she now has 5 Pokemon cards left how many Pokemon cards did she have to start with

A city which has a population of 250,000 has been experiencing a population decline of 5.5% every year. What will the population be in 9 years?

3 (4b - 2) = - 6 + 12b

Use the net to find the lateral area of the prism 8cm 15cm 17cm 11cm

For each stapler, there are 25 staples. Mr. Henry has s staplers. How many staples does Mr. Henry have?

Is 1/4 greater or less than 8/10