How to solve 3x+2y=-1, 6x+4y=0 by elimination

The mean beak depth of a particular finch species is 15 millimeters. assuming the trait is heritable what would happen to the mean beak depth after several generations of stabilizing selection? a. the mean should be less than 15mm b.

Find the difference between 400 and 273

Mia is three years older than twice her sister brooks age. The sum of their ages is less than 30. What is the greatest Brooke could be

Find two consecutive integers whose Sum is 93.

Y=x^2+4x-5 what is the axis of symetry

The library is having a contest to guess the number of candy pieces of candy in a jar. Johns guess of three times the number of candy pieces in the jar increased by 100 is lower than Keisha's guess of 250 less than twice the number of candy pieces.

A roller coaster carries riders up a ramp that is 39 meters long

A $750 television is on sale for 30% off. There is a 7% sales on the television. How much do you pay?

A rectangular prism has a height of 8 feet and a volume of 640 feet what is the area of the base of the prism

2. If y varies inversely as x and y = 3 when x = 5, find x when y = 2.5