Hello. I need help with Math soon as possible! Simplify the expression.

1+2⋅[(3+1)⋅5]

A. 23

B. 33

C. 41

D. 69

Evaluate 2r(t+7)

if r = 4 and t = 2.

A. 84

B. 72

C. 23

D. 19

What are the terms in the expression 5a + 3b + 1?

A. 5 and 3

B. a and b

C. 5a, 3b, and 1

D. 1

Evaluate the expression if x = 9 and y = 2.
5x + y

A. 19

B. 45

C. 47

D. 61

Peter has only quarters and dimes in his coin collection. He has three times as many quarters as dimes.

Which is an expression for the number of coins in his collection using d for the number of dimes?

A. 3d

B. 0.25d+3(0.10d)

C. 0.1d

D. 3d + d