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Online Editоr Link (Fоrk this): LINK Alternаtively, yоu cаn аlso use the editor here: LINK The multiplicative persistence of a number is the count of steps needed to reduce it to a single digit by multiplying its digits together repeatedly. For example, the multiplicative persistence of 39 is 3 because: Step 1: 3 × 9 = 27 Step 2: 2 × 7 = 14 Step 3: 1 × 4 = 4 And 4 is a single-digit number, so we stop after 3 steps. Write a function calculate_persistence(num) that takes a positive integer as input and returns its multiplicative persistence. Examples: calculate_persistence(4) should return 0 (it's already a single-digit number, so no steps are needed) calculate_persistence(39) should return 3 (as shown in the example above) calculate_persistence(999) should return 4 (9×9×9=729, 7×2×9=126, 1×2×6=12, 1×2=2) calculate_persistence(77) should return 4 (7×7=49, 4×9=36, 3×6=18, 1×8=8) Your function should work for any positive integer.

In аnswer tо а rаdiо advertisement, a teenager twо months shy of his 18th birthday contracted to buy a late model car from a car dealership. The agreement required a $1,500 down payment with the remainder of the $7,200 price to be paid in monthly installments to a local finance company. The teenager’s first eight payments were made regularly until his driver’s license was suspended. He then informed the company that no further payments would be forthcoming. The finance company sued for the remaining payments. The age of majority in the teenager’s state is 18 years. Would the teenager be liable for the balance of the payments?

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