Borrow 1 from the whole number to rewrite 8 10/24.

a. 7 34/24
b. 7 20/24
c. 8 34/24
d. 8 24/24

A.

Step-by-step explanation:

We are given  the expression,

On re-writing the expression after borrowing 1, we have,

=

i.e. =

i.e. =

Thus, the equivalent expression after borrowing 1 from the given expression is .

Hence, option A is correct.

Option 'A' is correct.

Step-by-step explanation:

since we have given that

We need to borrow 1 from the whole number.

If we borrow 1 from whole number then 1 need to be added with the fraction part.

So, it becomes,

Hence, Option 'A' is correct.

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)