1.5: Exploring Arithmetic Sequences UT
3. A grocery store worker has to collect all the shopping carts left out in the parking
lot. He collects 4 carts and measures the length of the 4 carts he is pushing to be 51
inches. He collects another cart for a total of 5 carts and measures the length of the
5 carts to be 57 inches.
(a) He sees that there are a total of 21 carts in the parking lot. How long
will the line of 21 carts be?

it should be a and d. lmk if i'm wrong xd

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

4+4+2x

or

2x+8

step-by-step explanation: