First one the answer is A; Alexander needs 70 ft
Answer:
The eight represents a tenth/ten
Step-by-step explanation:
The 2 represents a two hundred, the 8 a eight tenth/eighty and the 1 a one
Ok so the average is 50
average of x number of things is
(add value of all things)/x=average
4 test scores needed
so divide by 4
3 test scores ar known
average is 50
x= missing score
(43+48+42+x)/4=50
times 4 both sides
133+x=200
minus 133 both sides
x=67
a score of 67 is needed
Answer:
74 hope this works if not I'm sorry