Use mental math to figure out

1. 28 + 65.

2. 14 + 6 + 57

3. 80 + 40 + 170

4. 432 + 250

5. 82 - 37

6. 1245 - 320

7. 532 - 116

The law of cosines is a2+b2 - 2abcosC = c^2 find the value of 2abcosC ... A. 40 B. - 40 C. 37 D. 20 (The sides are 2,4, and 5; A to B is 2, B to C is 4, and A to C is 5.)

In detroit the high temp. is degrees fahrenheit for five days in jan. were 12,-8,3,6,-15. what was the average temperature for the five days

Find the general solution to y' + 19t1$ y = t19 Use the variable I=∫et17dt where it occurs in your answer, since this integral is not easily computable.

An antique store increases all of its prices by 40%, and then announces a 25%-off-everything sale. What percent of the original prices (before the increase) are the new prices?

How do you write 4 tens in a decimal chart

6. Via email you received a coupon for $10 off a purchase of $25 or more at Victoria's Secret. You buy a $25 bath robe and $10 slippers during Black Friday. What will your total be?

Which expression represents the following situation? multiply the sum of. a. number and 3 by the difference of 8 and the number

The area of the top of the rectangle table is 323 square feet. If the length of the table is19 feet what is the width of the table

Which is a solution for x in the equation x2 = 59? Select one: 3481 59 -29.5 29.5

Solve for x in the following equation. x2 + 4x = 21 A. x = 3; - 7 B. x = - 1; 21 C. x = 3; - 8 D. x = - 3; 7