In 45 years, Gabriela will be 4 times as old as she is right now.
How old is she right now?

15 yrs. old  

Step-by-step explanation:

x+45=4x     45=3x      15=x  

∡ eia and ∡ kij are congruent

step-by-step explanation:

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629