13 should be b and
14 is a because geometric mean to have a common ratio
12. Make equation and plug in
13. Proportion
14. Finding a constant rate, and then manipulate
12. Where x is miles driven, and y is answer, and z is days
19.95z+0.15x=y
Plug in two values
19.95 x 2 + 0.15 x 250 = y
39.93+37.5 = y
y=77.43
13. 5:2 as 175:x
5/2 = 175/x
x = 70
70+175=245
14. 260:5 = x:1
260/5=x/1
x = 52
52:1 = y:9
52/1 = y/9
y = 468
I hope you understand the process.
40 + 2 + 0.5 + 0.06 + 0.004
Step 1. Add 6 to both sides
a ≥ 1 + 6
Step 2. Simplify 1 + 6 to 7
a ≥ 7
Answer:
Step-by-step explanation:
