An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.
Can you provide more info?
For this case we can model the problem as a rectangle triangle.
We know:
Length of the hypotenuse
Angle between the base of the triangle and the hypotenuse.
We want to know:
Length of the base.
For this we use the following trigonometric relationship:

Clearing x we have:

Rounding to the nearest tenth of a meter:
Answer:
The horizontal distance she has covered is:
10 percent of $10= $1
10 percent of $5= $0.50
1+0.50=$1.50