(Help me please) Read all of it pls? John made 3 different stacks of wooden blocks. The first stack was 6 blocks high, the second stack was 7 block(s) higher than the first, and the final stack was 6 blocks higher than the second. how many blocks did John use for all 3 stacks?

the answer is 38 blocks

second stack:- 6+7 = 13

third stack :- 13+6 = 19

and sum of all blocks is 38

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

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step-by-step explanation: