How many angles does a triangle have.

Solve the following and express each answer in scientific notation. (5.3*10^4) + (1.3*10^4) = (7.2*10^-4) / (1.8*10^3= 10^4*10^-3*10^6=

Lisa is training for a marathon. She needs to run 10 miles by the end of the week. She ran 2.7 miles on Monday and 3.65 miles on Wednesday. How many more miles does she need to run on Friday?

Andrea notices that the 40-foot tree next to her is casting a 10-foot shadow. How tall, in inches, is Andrea if she is casting a 15-inch shadow at the same time?

Are these the length of a right triangle explain 7 8 12

5x + 5 equals 16 - 6x

How do I change this to a fraction - 6.3

If a^2 + b^2=c^2 then the triangle is a right triangle. A triangle with side lengths of 12 in, 24 in and 16 inches is a right triangle. True or False

You buy a package of cheese for $2.50, a loaf of bread for $2.15, a cucumber for $.65, and some tomatoes for $3.50. Find the total cost of the groceries.

62,400 is what percentage of 156,000

George wants to buy a $200 bike by the end of the summer. He decides to do odd jobs to earn the money for the bike. He miss lawns, washes cars, and waxes cars. His rates are $10 for a mowed lawn, $8 for a washed car, and $4 for a waxed car.