Rewrite the expression without using grouping symbols.
–6(8 +12)
a
(–6) • 8 + 12
b
(–6) • 8 + (–6) • 12
c
–68 + 612
d
(–6) + 8 • (–6) + 12
i think it is b.(–6) • 8 + (–6) • 12) am i right

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?