PLEASE HELP ME. Logan has twice as many contacts in his phone as Marcus. Janet has 8 more then 1/3 of the number of contacts that Marcus has. Marcus has 243 contacts in his phone. How many more contacts does Logan have than Janet?

397

Step-by-step explanation:

write an equation:

x = logan

y = marcus

z = janet

x = 2y

z = 1/3y+8

y = 243

x = 2 * 243

x = 486

z = 1/3 * 243 + 8

z = 89

logan = 486 contacts

marcus = 243 contacts

janet = 89 contacts

486-89 = 387

logan has 397 more

step-by-step explanation:

quartic functions has x = –1 and x = –2 as its only two real zeroes:

f(x) = a(x+2)(x+1)   a: real number