Use the number line below where RS=7y+3, ST=5y+6, and RT=57 a. What is the value of y?
b. Find RS and ST.

the first question RS=7y+3 is the first picture i solved for each letter the first one is for S and the second one of the same question is for R.

The next one ST=5y+6

Again the same thing as before the second picture is for ST=5y+6 it has it solved it for S and T sorry if this took so long

Step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.