Which expressions below equal a rational number? choose all that apply.
136
715 - 245
(47)(217)
v100 + 5

All are rational numbers.

Step-by-step explanation:

A rational number can be written in the form:

where a and b are integers and b≠0.

We can rewrite 136 as

hence 136 is a rational number.

715-245=470....is an integer and hence a rational number.

(47)(217)=10199....which is an integer, and all integers are rational numbers.

15 is also an integer and hence an integer.

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

5x+2x=49

7x=49

x=7. 35 apples