<em><u>45(x)-20 </u></em>
x=hours
7 hours
x=7
<em><u>45(7)-20 =295</u></em>
Answer:
4 plants
Step-by-step explanation:
In this problem, we are given the total area of the garden, which is:

The number of plants that can fit inside the garden is given by the equation:

where:
n is the number of plants
a is the area of each plants
In this problem, the area of each plant is

Therefore, we can re-arrange the equation to find the number of plants that can fit:

Answer:
cosR = 
Step-by-step explanation:
assuming the right triangle has ∠ Q = 90° with legs 5 and 12
then this is a 5- 12- 13 right triangle with hypotenuse PR = 13 cm
then
cosR =
=
= 