I NEED HELP PLS WHOEVER CAN ANSWER THIS CORRECTLY I WILL MAKE THEM THE BRAINLIEST
Seven less than twice a number is the same as one less than the number. Find the number.

a. 2

b. 4

c. 6

d. 8

Ron’s Father is thrice as old as him. In four years, their age will total 56 years. How old is each now

a. Ron is 10 years old and his Father is 30 years old

b. Ron is 12 years old and his Father is 24 years old

c. Ron is 15 years old and his Father is 45 years old.

d. Ron is 12 years old and his Father is 36 years old.

Duke is five times as old as Mae, but in five years' time, he will be 10 years more than thrice as old as her. How old is each now?

a. Duke is 55 years old and Mae is 15 years old.

b. Duke is 50 years old and Mae is 10 years old.

c. Duke is 5 years old and Mae is 25 years old.

d. Duke is 10 years old and Mae is 50 years old.