How could you calculate the value of log11(9100) using a calculator? What does it equal (round to the nearest tenths place)?

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00

The curved part of the figure is the semicircle what is the best approximation for the area of this figure