Floor tile costs $11 $11 per square yard. how much will it cost to tile a bathroom that is 90 90 square feet?

$110

Step-by-step explanation:

We are given that

Cost of 1 square yard of floor tile =$11

We have to find the cost of 90 square feet of tile.

To find the cost of 90 square feet we will convert it into square yard.

We know that

9 square foot=1 square yard

1 square foot=

90 square feet= square yard

By unitary method

Cost 1 square yard=$11

Cost of 10 square yard=$110

Hence, the cost of 90 square feet to tile a bathroom=$110

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer: it's d

step-by-step explanation: