What are different ways to add two rational numbers and get a negative

What are the coordinates of the orthocenter of △DEF with vertices at D (-1, 2), E (-1, - 4), and F (2, - 4) ?

What number times itself gives you 32?

Angie and Kenny play online video games. Angie buys 2 software packages and 3 months of gameplay. Kenny buys 2 software packages and 2 months of gameplay. Each software package costs $35.

Mariel wrote these checks from her checking account: $10, $10, $31, and $10. Which number shows the change in the balance of her checking account? a: $ - 61 b: $ - 1 c: $ 1 d: $ 61

It takes a boat ride for 15 minutes to reach his destination. If the boat was traveling at 6 meters/second, how far did the boat travel?

The length and width of a rectangle are measured as 45 cm and 24 cm, respectively, with an error in measurement of at most 0.1 cm in each. Use differentials to estimate the maximum error in the calculated area of the rectangle.

Keiko sewed 3/4 yard of lace on her backpack. Pam sewed 1/4 yard of lace on her backpack. How much more lace did keiko sew on her backpack than pam?

When n is divided by 14, the remainder is 10. what is the remainder when n is divided by 7?

What is an acute right triangle?

A truck left a warehouse at 1:00p. m the truck traveled 232 miles by 5:00p. m the truck continued traveling at the same average speed. how many miles altogether did the truck travel by 6:30p. m