07.LCSE.18 Which set of numbers forms a right triangle?
w
0 2.1, 4, 7
8, 10, 12
8, 15, 17
0 3.4, 4.5, 5.3
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Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?