Answer:
Option A
Annette picked 50 roses from the garden
Step-by-step explanation:
Let us understand the problem, designating letters to represent unknown quantities.
Let the total number of roses = x
20% of the roses were red means that 20% of x = red
Since the number of red roses = 10,
we will have that 20% of x = 10
mathematically, we will have

hence, Annette picked 50 roses from the garden
Answer:
The result after adding a set of numbers or is called a sum.
Step-by-step explanation:
Consider the provided information.
The four mathematical operations are:

The sign + is used to add numbers.
The sign - is used to subtract the numbers.
The sign × is used for the product of the numbers.
The sign ÷ is used for division of the numbers.
When we add two or more number by using the operator + the obtained number or value is called the sum of the numbers.
For example:
Consider the number: 2 + 5 if we add the number the resulting value will be 7.
The number 7 is the sum of 2 and 5.
Thus, the result after adding a set of numbers is called a sum.
Answer:
13
Step-by-step explanation:
1/4 of 52
= 1/4 x 52
= 52/4
= 13
The measures of angle <MRS is 78degrees
The line that bisects an angle divides the angle into two equal parts;
From the given diagram, the expression is true;
<MRT + <TRS = <MRS
Given the following parameters
<MRT = 54degrees
- If Q is a point on the bisector of <TRS, then <TRQ = <QRS
- Since <QRS = 12 degrees, hence <TRS = 12.
- <TRS = <TRQ + <QRS = 24degrees
Get the measure of <MRS
<MRS = <MRT + <TRS
<MRS = 54 + 24
<MRS = 78dgrees
Hence the measure of angle <MRS is 78degrees
Learn more here: brainly.com/question/17247176
I think the answer is -4 if you subsitute x for 3