Given an arithmetic sequence with a7=19 and a12=54 find a15

A. 61

B. 68

C. 75

D. 82

The esmit of 23 times 67 and the real answer pleasse im i school

7. There are seven clarinet players in the concert band. In how many ways can they be seated in seven chairs at a concert? Use the Fundamental Counting Principle. A. 5,040 C. 840 B. 2,520 D. 210

If nine coins are flipped, what is the probability of obtaining at least one head ?

Solve the equation 3x^2+96=0 in terms of i

How large is an angle whose supplement contains 12° less than three times its complement?

Rectangle x measures 7cm by (x+1) cm. Rectangle B has dimensions of (3x+6) cm and 4cm. The area of rectangle X is half the area of rectangle Y. Calculate the lengths of the sides of the rectangles, and hence, their areas.

A gym membership costs $50 to join and $12 each month. write and use an algebraic expression to find the cost of the gym membership for 6 months.

Find the surface area of a cylinder with radius 7 feet and height 16 feet.

Which function's graph is a translation of the graph of f (x) = x shifted 7 units to the left? a) g (x) = - 7x b) g (x) = x + 7 c) g (x) = 7x d) g (x) = x - 7

How do you convert 79 dollars to cents