What is the explicit formula for this sequence?
-7, -4,-1, 2,
a. a^n=-7+(n-)
b. a^n=-7+(n-1)3
c. a^n=8+n(n-1)3
d. a^n=3+(n-)

Find the area of the regular hexagon if a side is 20 cm.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis