Simplify the expression twenty-one minus seven times two plus nine. show your work. then, show how the solution is affected if addition and subtraction are not applied from left to right.

If sec 2A = 1/sin 13A, determine the angle A in degrees. a. 5° b. 6° c. 3° d. 7°

Is 16x2 + 24x + 9 a perfect square trinomial

Mr. Jones must pay his electric bill and his phone bill each month he also pays for one round of miniature golf and a monthly city bus pass sometimes he buys a snack at work or a magazine to read on his bus ride which of these are variable expenses

I need to estimate 9,427

A 7 pack of popsicle cost $2.51 what is the unit price, round to the nearest cent

How Many 3s Go Into 70

Suppose you can chose from 3 different shirts, 2 pairs of pants, and 5 pairs of shoes. Use the fundamental counting principle to find out how many different outfit combinations you can make.

The volumes of two spheres are 729 in3 and 27 in3. What is the ratio of their radii, rounded to the nearest whole number? a. 1:4 c. 3:1 b. 2:7 d. 3:4

Round the following number to the indicated place value. 13,293 A) 13,290 B) 13,300 C) 13,390 D) 13,280

What percent of 208 is 197.6