X + 2x + x + 10 = 90
4x = 80
x = 20
Answer: -1.6 is not a possible r-value.
Step-by-step explanation:
R-values range from -1 to +1. Out of all these numbers, -1.6 does not belong. Hence, -1.6 is not a r-value.
$138.00
Step-by-step explanation:
Steven earns in 4 hours -$23.00
he earns in 6 hours-$34.50
there fore in 10 hours -23.00+34.50=$57.50
in 20 hours -57.50+57.50=$115
and in 4 hours-$23.00+115.00=138.00$
then he earn $138.00 one day
Answer:
21
Step-by-step explanation:
