Eight times a number plus five times another number is -13. the sum of the two numbers is 1. what are the numbers?

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

"which statement is necessarily true if bd is an altitude to the hypotenuse of right ? abc? a.) ? adb? ? bdc b.) ? adb~? bdc c.) abbc=acbd d.) ? bac? ? bdc"