Answer:
The measure of length RT is 9 cm .
Step-by-step explanation:
Given figure as :
The Triangle TRS and Triangle TPQ are similar triangles
I.e Δ TRS ≈ Δ TPQ
And The measure of side PT = 3 cm
The measure of side PQ = 5 cm
The measure of side RS = 15 cm
Let The measure of side RT = x cm
So,<u> From the property of similar triangles</u>
= 
I.e
= 
Or,
= 
Or,
= 3
∴ x = 3 × 3
I.e x = 9 cm
Hence The measure of length RT is 9 cm . Answer
Answer:
45 students speak Spanish at Francis Lewis High School
Step-by-step explanation:
Option1:

18000 = 400x
x = 45 students speak Spanish at Francis Lewis High School
Option2:
72 ÷ 400 = 0.18
0.18 * 250 = 45 students speak Spanish at Francis Lewis High School
(8,-98) is not a solution for the function.