Estimating with multiplying decimals estimate 2.7 times 4

1+4=5, 2+5=12, 3+6=21 8+11=? So 96 is the correct answer? right?

What is the sum of 12 - 5i and - 3 + 4i?

One teacher wants to give each student 1 8/9 slices of pizza if the teacher has 34 slices of pizza then how many students will she be able to hand pizza to

Eric downloads a 20% off any one item coupon and goes shopping at Gadgets Galore, where he buys a digital camera for $94 and an extra battery for $16.99. i do not know the answer.

What is 10x*2sqrt (x)

Solve for x. Must be simplified 15<-5x

Simplify the following expression. (3 + 8 x) + 7 x 3 + 15 x 18 x 18 + x 11 x + 7

Round 9 over 16 to 0 1/2 or 1

Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm Which of these is closest to the percent error for Diego's measurement? a. 4.3% b. 4.5% c. 95.7% d. 104.5%

You started with $25 in your pocket. You were lucky and found two dimes on the ground. You then bought a sandwich for $3.99 and an iced tea for $1.48. How much money do you have left?