Is 0.81 repeating, 0.9, or 0.99 bigger? I swear I used to know this, but I have completely forgotten.

Write as a single term: cos (2x) cos (x) + sin (2x) sin (x)

James has 4 football cards. Benjamin has 5 times as many football cards as James. how many football cards does Benjamin have?

Tim and Tom are trying to earn money to buy a new game system over a 3-month period. Tim saved $45.14 each month. If they need a total of $211.

What is the prefix of writer

If there's 40 students and 55% students passed. What number of students passed

A cone is inscribed in a regular square pyramid. If the pyramid has a base edge of 6" and a slant height of 9", find the volume of the cone.

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%