Answer:
50 cm
Step-by-step explanation:
4/5 = 40/x
cross multiply
4x=200
x=50
15 is coefficient, a is a variable, 2 and -7 are like terms, 15a is a term and 2 and 7 are constants.
Answer:

Step-by-step explanation:
Let’s find the common difference.
The common difference can be found by subtracting a term in the sequence with the previous term.

Apply formula for the
term of an arithmetic sequence.

is the first term of the sequence.
is the common difference.



Answer:
d.interserting i believe
Step-by-step explanation: