sarah made an 89 on the first test and a 68 on the second test. the third test is tomorow and all of the tests count the same. her parents said she has to have a test average of atleast 80 in order to go to the ballgame with her boufriend friday night. what id the least grade zhd coild make on the third test and be allowed go go to the game

56

step-by-step explanation:

step-by-step explanation:

no solution.

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week

114 plus 113 times 2 and 114 times 3