B. 18.37
1990 - 1960 = 30 = t
Plug in the variable "t" to the equation and solve.
P (t) = 18.37
138 x ? = 75
? = 75/138 = 0.544(3sf)
so about 54.35% (2dp) decrease
Answer:
whats the ?
Step-by-step explanation:
Answer:
c.
Step-by-step explanation:
Answer:
1.125
Step-by-step explanation:
you wanna get a common denominator by multiplying 3/4 by 3 and 2/3 by 4 which gives you 6/12 divided by 8/12