15+[-8 (-4)] how do i work this problem..

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents