Answer:

Step-by-step explanation:
<h3>Exponent rule:</h3>
In exponent multiplication, if bases are same, add the exponents.



Answer:
y = 3
Step-by-step explanation:

Answer:
7.5 metres
Step-by-step explanation:
height : shadow
1.5 : 3
X : 15
X/15 = 1.5/3
X = 15/2
X = 7.5
Angle RQU would be obtuse
Angle SQU would be acute