Hugo just bought a new pair of jeans at the mall. The jeans cost $45.99 and tax is 7%. What will he have to pay for the jeans in total?

To calculate the total cost of the jeans, first, find the amount of tax Hugo has to pay by multiplying the price of the jeans by the tax rate: $45.99 * 7% = $<<45.99*0.07=3.2193>>3.22

Then add the cost of the jeans and the tax to find the total cost: $45.99 + $3.22 = $<<45.99+3.22=49.21>>49.21. Answer: \boxed{49.21}.