Erin is buying floor tile to put in a room that is 10 ft by 15 ft. she has chosen tiles that are 18 in by 18 in. assuming that she needs to buy 10% extra to be safe, how many tiles will she need to buy?

the answer is d. 75%

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

add an image, and i will answer

step-by-step explanation:

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour