1. Tentukan Suku pertama, bedo / rasio, rumus Suku ke-n dan suku ke-15 dari barisan berikut : a. 3,8. 13, 18, b. 3, 6, 12, -24.

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).

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia