What is the value of the expression below when x = 4 and y = 2? 4x + 10

i’m really confused on this and it’s for a test

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

How far could you drive on 50 gallons of gas