Evaluate the expression 7 + 4 x 5 − (15 ÷ 5) using PEMDAS.

24
27
44
52

Step-by-step explanation:

Follow PEMDAS:

P ~ Parentheses, E ~ Exponents, M ~ Multiplication, D ~ Division, A~ Addition, and S ~ Subtraction.

1) Parentheses:

2) Multiplication:

3) Addition/Subtraction:

~

The answer is in the image 

The answer is in the image 

The answer is in the image 

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make $108 in $1800 sales

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make $108 in $1800 sales

The answer is in the image 

Let the father's age be x and son's be y

10 years before-

Father age=x-10

sons age=y-10

Given,

x-10=10(y-10)

x-10=10y-100

Given present age of father=40

therefore,

x=40

40-10=10y-100

10y-100=30

10y=130

y=130/10

y=13

Therefore present age of son=13years