Solve each system by elimination.
4x + 7y = -10

4x + 4y = -16

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.