15·0.8 + x = 30·0.9 --> x = 15
C. is the correct answer
Tan(58)=10/x
x=10/tan(58)
x= 6.2
14 fleece jackets can be made
The given expression is
81x²y³ + z
When x=3, y=4, z=19, then
81x²y³ + z
= 81*(3²)*(4³) + 19
= 81*9*64 + 19
= 46,675
Answer: D 46,675
Your equations would be:
X * y = -5
X + y = 2
Your answer would be -1.5 and 3.5
Hope I helped!
~ Zoe
