A geologist drew a scale drawing of a section of a quartz layer she saw in a cliff. The
scale drawing of the layer is 2 cm high and 24 cm long. If the actual layer is 0.15 m
high, what is the area of the actual quartz layer section she saw?
PLEASE HELP ME.

Solve: 3x+y=6 4x-2y=18 show all work !

Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply. there will be one solution. there will be two solutions. the solution to –(y + 6) = 2 will be also be a solution to the given absolute value equation. the solution(s) will be the number(s) on the number line 2 units away from –6. the value of y must be positive since the variable is inside absolute value signs.

How are algebraic expressions evaluated using substitution?