Which expression is equivalent to 2(2a-5) - (a-3)?

a-2
3a-7
a-7
3a-13

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

£100.80 divided by 14 equals 7.2 how would we put this as money