Which of the following equalities are valid? choose all that apply. i need this asap in a. 2* (3 + 5)^2 = 121 b. 3* (4 - 2)^2 + 1 = 101 c. 2* (3 + 5)^2 = 128 d. 3* (4 - 2)^2 + 1 = 13

C. 2* (3 + 5)^2 = 128 is the correct answer.

2*(3 + 5)^2 = 128
2*(4 - 2)^2 + 1 = 13

So C and D are correct.

The unit of ratio is expressed in
a) Metre
b) Gram The unit of ratio is expressed in
a) Metre
b) Gram The unit of ratio is expressed in
a) Metre
b) Gram The unit of ratio is expressed in
a) Metre
b) Gram The unit of ratio is expressed in
a) Metre
b) Gram The unit of ratio is expressed in
a) Metre
b) Gram